Timeline of zoology

This is a chronologically organized listing of notable zoological events and discoveries.

Main articles: History of zoology through 1859 and History of zoology since 1859

Ancient world
Lascaux aurochs, Stone Age[2]
  • 3500 BC. Sumerian animal-drawn wheeled vehicles and plows were developed in Mesopotamia, the region called the "Fertile Crescent". Irrigation was probably done using animal power. Since Sumeria had no natural defenses, armies with mounted cavalry and chariots became important, increasing the importance of equines (horses and donkeys).
  • 2000 BC. Domestication of the silkworm in China.
  • 1100 BC. Won Chang (China), first of the Zhou emperors, stocked his imperial zoological garden with deer, goats, birds, and fish from many parts of the world. The emperor also enjoyed sporting events with the use of animals.
  • 850 BC. Homer (Greek) wrote the epics Iliad and Odyssey, which both contain animals as monsters and metaphors (gross soldiers turned into pigs by the witch Circe), but also some correct observations on bees and fly maggots. Both epics make reference to mules.
  • 610 BC. Anaximander (Greek, 610 BC–545 BC) was a student of Thales of Miletus. He taught that the first life was formed by spontaneous generation in the mud. Later animals came into being by transmutations, left the water, and reached dry land. Man was derived from lower animals, probably aquatic. His writings, especially his poem On Nature, were read and cited by Aristotle and other later philosophers, but are lost.
  • 563? BC. Buddha (Indian, 563?–483 BC) had gentle ideas on the treatment of animals. He said that animals are held to have intrinsic worth, not just the values they derive from their usefulness to man.
  • 500 BC. Empedocles of Agrigentum (Greek, 504–433 BC) reportedly rid a town of malaria by draining nearby swamps. He proposed the theory of the four humors and a natural origin of living things.
"Blue Monkeys" Bronze Age Akrotiri
  • 500 BC. Xenophanes (Greek, 576–460 BC), a disciple of Pythagoras (570–497 BC), first recognized fossils as animal remains and inferred that their presence on mountains indicated the latter had once been beneath the sea. "If horses or oxen had hands and could draw or make statues, horses would represent the forms of gods as horses, oxen as oxen." Galen (130–216 AD) revived interest in fossils that had been rejected by Aristotle, and the speculations of Xenophanes were again viewed with favor.
  • 470 BC. Democritus of Abdera (Greek, 470–370 BC) made dissections of many animals and humans. He was the first Greek philosopher-scientist to propose a classification of animals, dividing them into blooded animals (Vertebrata) and bloodless animals (Evertebrata). He also held that lower animals had perfected organs and that the brain was the seat of thought.
  • 460 BC. Hippocrates (Greek, 460–370 BC), the "Father of Medicine", used animal dissections to advance human anatomy.
  • 440 BC. Herodotus of Halikarnassos (Greek, 484–425 BC) treated exotic fauna in his Historia, but his accounts are often based on tall tales. He explored the Nile, but much of ancient Egyptian civilization was already lost to living memory by his time.
  • 427 BC. Plato (Greek, 427–347 BC) held that animals existed to serve man, but they should not be mistreated because this would lead people to mistreat others. Others who have echoed this opinion are St. Thomas Aquinas, Immanuel Kant, and Albert Schweitzer.
  • 384 BC. Aristotle's (Greek, 384–322 BC) books Historia Animalium (9 books), De Partibus Animalium, and De Generatione Animalium set the zoological stage for centuries. He emphasized the value of direct observation, recognized law and order in biological phenomena, and derived conclusions inductively from observations. He believed that there was a natural scale of animals that ran from simple to complex. He made advances in marine biology, basing his writings on keen observation and rational interpretation as well as conversations with local Lesbos fishermen for two years, beginning in 344 BC. His account of male protection of eggs by the barking catfish was scorned for centuries until Louis Agassiz confirmed Aristotle's description.
Apollo with a sacred crow
  • 323 BC. Alexander the Great (Macedonian, 356–323 BC) collected animals when he was not busy conquering the known world. He is credited with the introduction of the peacock into Europe.
  • 70 BC. Publius Vergilius Maro (Virgil) (70–19 BC) was a famous Roman poet. His poems Bucolics (42–37 BC) and Georgics (37–30 BC) hold much information on animal husbandry and farm life. His Aeneid (published posthumously) has many references to the zoology of his time.
  • 36 BC. Marcus Terentius Varro (116–27 BC) wrote De Re Rustica, a treatise that includes apiculture. He also treated the problem of sterility in the mule and recorded a rare instance in which a fertile mule was bred.
  • 50. Lucius Annaeus Seneca (Roman, 4 BC–65 AD), tutor to Roman emperor Nero, maintained that animals have no reason, just instinct, a "stoic" position.
Peacock endpapers from the Vienna Dioscurides
  • 77. Pliny the Elder (Roman, 23–79) wrote his Historia Naturalis in 37 volumes. This work is a catch-all of zoological folklore, superstitions, and some good observations.
  • 79. Pliny the Younger (Roman, 62–113), nephew of Pliny the Elder, inherited his uncle's notes and wrote on beekeeping.
  • 100. Plutarch (Roman, 46–120) stated that animals' behavior is motivated by reason and understanding.
  • 131. Galen of Pergamum (Greek, 130–216), physician to Roman Emperor Marcus Aurelius, wrote on human anatomy from dissections of animals. His texts were used for hundreds of years, gaining the reputation of infallibility.
  • 200 c. Various compilers in post-classical and medieval times added to the Physiologus (or, more popularly, the Bestiary), the major book on animals for hundreds of years. Animals were believed to exist in order to serve man, if not as food or slaves then as moral examples.
  • Early third century. Composition of De Natura Animalium by Claudius Aelianus (Roman, 175–235.)

Middle Ages
Isidoro di siviglia, etimologie,. Bruxelles, Bibliothèque Royale Albert I
  • 600 c. Isidorus Hispalensis (Spanish bishop of Seville) (560–636) wrote Origines sive Etymologiae, an encyclopedic compendium of ancient knowledge including information on animals that served until the rediscovery of Aristotle and Pliny. Full of errors, it nevertheless was influential for hundreds of years. He also wrote De Natura Rerum.
  • 781. Al-Jahiz (Afro-Arab, 781–868/869), a scholar at Basra, wrote on the influence of environment on animals.
  • 901. Horses came into wider use in those parts of Europe where the three-field system produces grain surpluses for feed, but hay-fed oxen were more economical, if less efficient, in terms of time and labor and remained almost the sole source of animal power in southern Europe, where most farmers continued to use the two-field system.
  • 1225-1244. Thomas of Cantimpré‚ (Fleming, 1204?–1275?) wrote Liber de Natura Rerum, a major 13th-century encyclopedia.
Ploughing with oxen in the 15th century. Très Riches Heures du Duc de Berry
Falconry Manesse Codex, Zürich
  • 1244. Vincentius Bellovacensis (Vincent of Beauvais) (?–1264) wrote Speculum Quadruplex Naturale, Doctrinale, Morale, Historiale (1244–1254), a major encyclopedia of the 13th century. This work comprises three huge volumes, of 80 books and 9,885 chapters.
  • 1254–1323. Marco Polo (Italian, 1254–1323) provided information on Asiatic fauna, revealing new animals to Europeans. "Unicorns" (which may actually have been rhinos) were reported from southern China, but fantastic animals were otherwise not included.
  • 1255–1270. Albertus Magnus of Cologne (Bavarian, 1206?–1280) (Albert von Bollstaedt or St. Albert) wrote De Animalibus. He promoted Aristotle but also included new material on the perfection and intelligence of animals, especially bees.
  • 1304–1309. Petrus de Crescentii wrote Ruralum Commodorum, a practical manual for agriculture with many accurate observations on insects and other animals. Apiculture was discussed at length.
Bartholomaeus Anglicus, Vanden proprieteyten der dighen. Haarlem: Jacob Bellaert, 24. December 1485

Modern world
A comparison of the skeleton of birds and man in Belon's book on birds, 1555
  • 1551–1555. Pierre Belon (French, 1517–1564) wrote L'Histoire Naturelle des Estranges Poissons Marins (1551) and La Nature et Diversité des Poissons (1555). This latter work included 110 animal species and offered many new observations and corrections to Herodotus. L'Histoire de la nature des oyseaux avec leurs descriptions et naïfs portraicts (1555) was his picture book, with improved animal classification and accurate anatomical drawings. In this he published a man's and a bird's skeleton side by side to show the resemblance. He discovered an armadillo shell in a market in Syria, showing how Muslims were distributing the finds from the New World.
  • 1551. Conrad Gessner (Swiss, 1516–1565) wrote Historia animalium (Tiguri, 4 vols., 1551–1558, last volume published in 1587) and gained renown. This work, although uncritically compiled in places, was consulted for over 200 years. He also wrote Icones animalum (1553) and Thierbuch (1563).
  • 1552 Edward Wotton (English, 1492–1555) published De Differentiis Animalium, a work that influenced Gessner.
  • 1554–1555. Guillaume Rondelet (French, 1507–1566) wrote Libri de piscibus marinis (1554) and Universe aquatilium historia (1555). He gathered vernacular names in hope of being able to identify the animal in question. He did go to print with discoveries that disagreed with Aristotle.
  • 1578. Jean de Lery (French, 1534–1611) was a member of the French colony at Rio de Janeiro. He published Voyage en Amerique avec la description des animaux et plantes de ce pays (1578) with observations on the local fauna.
  • 1585. Thomas Harriot (English, 1560–1621) was a naturalist with the first attempted English colony in North America, on Roanoke Island, North Carolina. His Brief and True Report of the New Found Land of Virginia (1590) describes the black bear, gray squirrel, hare, otter, opossum, raccoon, skunk, Virginia and mule deer, turkeys, and horseshoe crab (Limulus).
  • 1589. José de Acosta (Spanish, 1539–1600) wrote De Natura Novi Orbis Libri duo (1589) and Historia Natural y Moral de las Indias (1590), describing many animals from the New World previously unknown to Europeans.

17th century
  • 1600. In Italy a spider scare lead to hysteria and the tarantella dance by which the body cures itself through physical exertions.
  • 1602. Ulisse Aldrovandi (Italian, 1522–1605) wrote De Animalibus Insectis. This and his other works include many scientific inaccuracies, but he used wing and leg morphology to construct his classification of insects. He is more highly regarded for his ornithological contributions.
  • 1604–1614. Francisco Hernández de Toledo (Spanish) was sent to study Mexican biota in 1593–1600, by Philip II of Spain. His notes were published in Mexico in 1604 and 1614, describing many animals to Europeans for the first time: coyote, buffalo, axolotl, porcupine, pronghorn antelope, horned lizard, bison, peccary, and the toucan. He also included figures of many animals for the first time, including the ocelot, rattlesnake, manatee, alligator, armadillo, and pelican.
  • 1607 (1612?). Captain John Smith (English), head of the Jamestown colony, wrote A Map of Virginia in which he describes the physical features of the country, its climate, plants and animals, and inhabitants. He describes the raccoon, muskrat, flying squirrel, and other animals.
  • 1617. Garcilaso de la Vega (Peruvian Spanish, 1539–1617) wrote Royal Commentaries of Peru, containing descriptions of the condor, ocelots, puma, viscacha, tapir, rhea, skunk, llama, huanaco, paca, and vicuña.
  • 1620? North American colonists probably introduced the European honeybee, Apis mellifera, into Virginia. By the 1640s these insects were also in Massachusetts. They became feral and advanced through eastern North America before the settlers.
  • 1628. William Harvey (English, 1578–1657) published Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus (1628) with the doctrine of the circulation of blood (an inference made by him in about 1616).
  • 1634. William Wood (English) wrote New England Prospect (1634) in which he describes New England's fauna.
  • 1637. Thomas Morton (English, c. 1579–1647) wrote New English Canaan (1637) with treatments of 26 species of mammals, 32 birds, 20 fishes and 8 marine invertebrates.
Title plate of Historia Naturalis Brasiliae
  • 1648. Georg Marcgrave (?–1644) was a German astronomer working for Johann Moritz, Count Maurice of Nassau, in the Dutch colony set up in northeastern Brazil. His Historia Naturalis Brasiliae (1648) contains the best early descriptions of many Brazilian animals. Marcgrave used Tupi names that were later Latinized by Linnaeus in the 13th edition of the Systema Naturae. The biological and linguistic data could have come from Moraes, a Brazilian Jesuit priest turned apostate.
  • 1651. William Harvey published Exercitationes de Generatione Animalium (1651) with the aphorism Ex ovo omnia on the title page.
  • 1661. Marcello Malpighi (Italian, 1628–1694) discovered capillaries (1661), structures predicted to exist by Harvey some thirty years earlier. Malpighi was the founder of microanatomy. He studied, among other things, the anatomy of the silkworm (1669) and the development of the chick (1672).
  • 1665. Robert Hooke (English, 1635–1703) wrote Micrographia (1665, 88 plates), with his early microscopic studies. He coined the term "cell".
  • 1668. Opening of the Royal Menagerie at Palace of Versailles.
  • 1668. Francesco Redi (Italian, 1621–1697) wrote Esperienze Intorno alla Generazione degli Insetti (1668) and De animaculis vivis quae in corpribus animalium vivorum reperiuntur (1708). His refutation of spontaneous generation in flies is still considered a model in experimentation.
  • 1669. Jan Swammerdam (Dutch, 1637–1680) wrote Historia Insectorum Generalis (1669) describing metamorphosis in insects and supporting the performation doctrine. He was a pioneer in microscopic studies. He gave the first description of red blood corpuscles and discovered the valves of lymph vessels. His work was unknown and unacknowledged until after his death.
  • 1672. Regnier de Graaf (Dutch, 1641–1673) reported that he had traced the human egg from the ovary down the fallopian tube to the uterus. What he really saw was the follicle.
  • 1675–1722. Antonie van Leeuwenhoek (Dutch, 1632–1723) wrote Arcana Naturae Detectae Ope Microscopiorum Delphis Batavorum, a treatise with early observations made with microscopes. He discovered blood corpuscles, striated muscles, human spermatozoa (1677), protozoa (1674), bacteria (1683), rotifers, etc.
  • Martin Lister (English, 1639–1712) publishes the first work on spiders based on observation.
  • 1691. John Ray (English, 1627–1705) wrote Synopsis methodica animalium quadripedum (1693), Historia Insectorum (1710), and The Wisdom of God Manifested in the Works of the Creation (1691). He tried to classify different animal species into groups largely according to their toes and teeth.
  • 1699. Edward Tyson (English, 1650–1708) wrote Orang-Outang sive Homo Sylvestris (or Anatomy of a Pygmie Compared with that of a Monkey, an Ape and a Man) (1699), his anatomical study of the primate. This was the first detailed and accurate study of the higher apes. Other studies by Tyson include the female porpoise, male rattlesnake, tapeworm, roundworm (Ascaris), peccary and opossum.
  • 1700. Félix de Azara (Spanish) estimated the feral herds of cattle on the South American pampas at 48 million animals. These animals probably descended from herds introduced by the Jesuits some 100 years earlier. (North America and Australia were to follow in this pattern, where feral herds of cattle and mustangs would explode, become pests, and reform the frontier areas.)

18th century
Ants, spiders and hummingbird. Plate from Metamorphosis insectorum surinamensis
  • 1705. Maria Sybilla Merian (German, 1647–1717) wrote and illustrated her Metamorphosis insectorum surinamensis (Veranderingen der Surinaamsche Insecten) (1705). In this book she stated that Fulgora lanternaria was luminous.
  • 1734–1742. René Antoine Ferchault de Réaumur (French, 1683–1756) was an early entomologist. His Mémoires pour servir ... l'histoire des insectes (6 volumes) shows the best of zoological observation at the time. He invented the glass-fronted bee hive.
  • 1740. Abraham Trembley, Swiss naturalist, discovered the hydra which he considered to combine both animal and plant characteristics. His Mémoires pour Servir ... l'Histoire d'un Genre de Polypes d'Eau Douce ... Bras en Terme de Cornes (1744) showed that freshwater polyps of Hydra could be sectioned or mutilated and still reform. Regeneration soon became a topic of inquiry among Réaumur, Bonnet, Spallanzani, and others.
  • 1745. Charles Bonnet (French-Swiss, 1720–1793) wrote Traité d'Insectologie (1745) and Contemplation de la nature (1732). He confirmed parthenogenesis of aphids.
  • 1745. Pierre Louis M. de Maupertuis (French, 1698–1759) went to Lapland to measure the arc of the meridian (1736–1737). Maupertuis was a Newtonian. He generated family trees for inheritable characteristics (e.g., haemophilia in European royal families) and showed inheritance through both the male and female lines. He was an early evolutionist and head of the Berlin Academy of Sciences. In 1744 he proposed the theory that molecules from all parts of the body were gathered into the gonads (later called "pangenesis"). Vénus physique was published anonymously in 1745. Maupertuis wrote Essai de cosmologie in which he suggests a survival of the fittest concept: "Could not one say that since, in the accidental combination of Nature's productions, only those could survive which found themselves provided with certain appropriate relationships, it is no wonder that these relationships are present in all the species that actually exist? These species which we see today are only the smallest part of those which a blind destiny produced."
  • 1748. John Tuberville Needham, an English naturalist, wrote Observations upon the Generation, Composition, and Decomposition of Animal and Vegetable Substances in which he offers "proof" of spontaneous generation. Needham found flasks of broth teeming with "little animals" after having boiled them and sealed them, but his experimental techniques were faulty.
Statue of Buffon in the Jardin des Plantes in Paris.
Route of the First voyage of James Cook
Eulemur mongoz, plate from Johann Schreber's Histoire naturelle des quadrupèdes représentés d´après nature
  • 1783–1792. Alexandre Rodrigues Ferreira (Brazilian) wrote Viagem Filosófica pelas Captanias do Grão-Pará, Rio Negro, Mato Grosso e Cuiabá. His specimens were taken by Saint-Hilaire from Lisbon to the Paris Museum during the Napoleonic invasion of Portugal.
  • 1784. Johann Wolfgang von Goethe (German) wrote Erster Entwurf einer Einleitung in die vergleichende Anatomie (1795) that promoted the idea of archetypes to which animals should be compared.
  • 1784. Thomas Jefferson (American) wrote Notes on the State of Virginia (1784) that refuted some of Buffon's mistakes about New World fauna. As U.S. president, he dispatched the Lewis and Clark Expedition to the American West (1804).
  • 1788. The First Fleet inaugurates British settlement of Australia. Knowledge of Australia's unique zoology, including marsupials and the platypus, would revolutionize Western zoology.
  • 1789? Guillaume Antoine Olivier (French, 1756–1814) wrote Entomologie, or Histoire Naturelle des Insectes (1789).
  • 1789. George Shaw & Frederick Polydore Nodder published The Naturalist's Miscellany: or coloured figures of natural objects drawn and described immediately from nature (1789–1813) in 24 volumes with hundreds of color plates.
  • 1792. François Huber made original observations on honeybees. In his Nouvelles Observations sur les Abeilles (1792) he noted that the first eggs laid by queen bees develop into drones if her nuptial flight had been delayed and that her last eggs would also give rise to drones. He also noted that rare worker eggs develop into drones. This anticipated by over 50 years the discovery by Jan Dzierżon that drones come from unfertilized eggs and queen and worker bees come from fertilized eggs.
  • 1793. The National Museum of Natural History, France is founded in Paris. It became a major center of zoological research in the early nineteenth century.
  • 1793. Lazaro Spallanzani (Italian, 1729–1799) conducted experiments on the orientation of bats and owls in the dark.
  • 1793. Christian Konrad Sprengel (1750–1816) wrote Das entdeckte Geheimniss der Natur im Bau und in der Befruchtung der Blumen (1793) that was a major work on insect pollination of flowers, previously discovered in 1721 by Philip Miller (1694–1771), the head gardener at Chelsea and author of the famous Gardener's Dictionary (1731–1804).
Plaque commemorating Christian Konrad Sprengel
  • 1794. Erasmus Darwin (English, grandfather of Charles Darwin) wrote Zoönomia, or the Laws of Organic Life (1794)[6] in which he advanced the idea that environmental influences could transform species.
  • 1796–1829. Pierre André Latreille (French, 1762–1833) sought to provide a "natural" system for the classification of animals, in his many monographs on invertebrates. Insectes de l'Amerique Equinoxiale (1811) was devoted to insects collected by Humboldt and Bonpland.
  • 1797-1804. Publication of A History of British Birds by Thomas Bewick and Ralph Beilby in two volumes.
  • 1798. Publication of Thomas Robert Malthus's An Essay on the Principle of Population, a book important to both Darwin and Wallace.
  • 1799. George Shaw (English) provided the first description of the duck-billed platypus.[7] Everard Home (1802) provided the first complete description.
  • 1799–1803. Alexander von Humboldt (German, 1769–1859) and Aimé Jacques Alexandre Goujaud Bonpland (French) arrived in Venezuela in 1799. Humboldt's Personal Narrative of Travels to the Equinoctial Regions of America during the years 1799–1804[8] and Kosmos were influential in his time.
  • 1799. Georges Cuvier (French, 1769–1832) established comparative anatomy as a field. He also founded the science of paleontology. He wrote Leçons d'Anatomie Comparée (1801–1805), Le Règne Animal distribué d'après son organisation (1816), Ossemens Fossiles (1812–1813). He believed in the fixity of species and the Biblical Flood. His early Tableau élémentaire de l'histoire naturelle des animaux (1798) was influential, but it did not include Cuvier's major contributions to animal classification.
  • 1799. American hunters killed the last bison on the Eastern coast of the United States, in Pennsylvania.

19th century
Portrait of Jean-Baptiste Lamarck
  • 1802. Jean-Baptiste de Lamarck (French, 1744–1829) wrote Recherches sur l'Organisation des Corps Vivants and Philosophie zoologique (1809). He was an early evolutionist and organized invertebrate paleontology. While Lamarck's contributions to science include work in meteorology, botany, chemistry, geology, and paleontology, he is best known for his work in invertebrate zoology and his theoretical work on evolution. He published a seven-volume work, Histoire naturelle des animaux sans vertèbres ("Natural history of animals without backbones"; 1815–1822).
  • 1813–1818. William Charles Wells (Scottish-American, 1757–1817) was the first to recognise the principle of natural selection. He read a paper to the Royal Society in 1813 (but not published until 1818) which used the idea to explain differences between human races. The application was limited to the question of how different skin colours arose.
  • 1815. William Kirby and William Spence (English) wrote An Introduction to Entomology (first edition in 1815). This was the first modern entomology text.
  • 1817. Publication of American Entomology by Thomas Say, the first work devoted to American insects. A greatly expanded three-volume edition would appear 1824–1828. Say was a systematic zoologist who moved to the utopian community at New Harmony, Indiana, in 1825. Most of his insect collections have been recovered.
  • 1817. Georges Cuvier wrote Le Règne Animal (Paris).
  • 1817–1820. Johann Baptist von Spix (German, 1781–1826) and Carl Friedrich Philipp von Martius (German) conducted Brazilian zoological and botanical explorations (1817–1820). See their Reise in Brasilien auf Befehl Sr. Majestät Maximilian Joseph I König von Bayern in den Jahren 1817 bis 1820 gemacht und beschrieben (3 vols., 1823–1831).
  • 1817. William Smith, in his Strategraphical System of Organized Fossils (1817) showed that certain strata have characteristic series of fossils.
  • 1819 William Lawrence (English, 1783–1867) published a book of his lectures to the Royal College of Surgeons. The book contains a rejection of Lamarckism (soft inheritance), proto-evolutionary ideas about the origin of mankind, and a denial of the 'Jewish scriptures' (Old Testament). He was forced to suppress the book after the Lord Chancellor refused copyright and other powerful men made threatening remarks.
  • 1819. Malayan tapir, a first species of tapir to be discovered, is described.
  • 1824. Publication of the French physician Henri Dutrochet's Mémoires pour servir a l'histoire anatomique et physiologique des végétaux et des animaux setting forth a physiological theory of the cell.
  • 1824. The Royal Society for the Prevention of Cruelty to Animals (RSPCA) is founded at London.
  • 1824. Founding of the Zoological Journal, the first English-language journal of zoology. The last issue would appear in 1834.
  • 1825. Gideon Mantell (English) wrote "Notice on the Iguanodon, a newly discovered fossil reptile, from the sandstone of Tilgate Forest, in Sussex" (Phil. Trans. Roy, Soc. Lond., 115: 179–186), the first paper on dinosaurs. The name dinosaur was coined by anatomist Richard Owen.
  • 1826. Founding of the Zoological Society of London.
  • 1826–1839. John James Audubon (Haitian-born American, 1785–1851) wrote Birds of America (1826–1839), with North American bird portraits and studies. See also his posthumously published volume on North American mammals written with his sons and the naturalist John Bachman, The Viviparous Quadrupeds of North America (1845–1854) with 150 folio plates.
  • 1827. Karl Ernst von Baer (Russian embryologist, 1792–1876) was the founder of comparative embryology. He demonstrated the existence of the mammalian ovum, and he proposed the germ-layer theory. His major works include De ovi mammalium et hominis genesi (1827) and Über Entwickelungsgeschichte der Tiere (1828; 1837).
  • 1827. Description of Sagitta, a genus of chaetognaths.
  • 1828. The Zoological Society of London opens its "zoo" to the public (later known as the London Zoo) for two days a week beginning April 27, 1828, with the first hippopotamus to be seen in Europe since the ancient Romans showed one at the Colosseum. This was the first modern zoo founded for scientific research and education.
  • 1829. James Smithson (English, 1765–1829) donates seed money in his will for the founding of the Smithsonian Institution in Washington.
  • 1830–1833. Sir Charles Lyell (English, 1797–1875) writes Principles of Geology and described the time required for evolution to work. Darwin took this book to sea on HMS Beagle.
  • 1830. Étienne Geoffroy Saint-Hilaire (French, 1772–1844) writes Principes de philosophie zoologique (1830).
  • 1830. Founding of the Journal of Zoology, then known as Proceedings of the Zoological Society of London.
  • 1831. Founding of the Magasin de Zoologie, the first French-language zoological journal.
  • 1831–1836. Charles Darwin (English, 1809–1882) and Captain Robert FitzRoy (English) depart for their voyage. Darwin's report is generally known as The Voyage of the Beagle.
  • 1832. Thomas Nuttall (1786–1859) writes A Manual of the Ornithology of the United States and Canada (1832) that becomes the standard text on the subject for most of the 19th century.
A watercolour of HMS Beagle
  • 1835. William Swainson (English, 1789–1855) writes A Treatise on the Geography and Classification of Animals (1835), in which he uses ad hoc land bridges to explain animal distributions. He includes some second-hand observations on Old World army ants.
  • 1835. Founding of the Archiv für Naturgeschichte, the premier German-language journal of natural history with an emphasis on zoology. It would be published until 1926.
  • 1839. Theodor Schwann (German, 1810–1882) writes Mikroskopischen Untersuchungen über die Übereinstimmungen in der Strucktur und dem Wachstum der Thiere und Pflanzen (1839). Schwann established the foundation for cell theory.
  • 1839. Louis Agassiz (Swiss-American, 1807–1873), an expert on fossil fishes, founds the Museum of Comparative Zoology at Harvard University, and becomes Darwin's North American opposition. He was a popularizer of natural history. His Nomenclator Zoologicus (1842–1847) was a pioneering effort.
  • 1840. Jan Evangelista Purkyně, a Czech physiologist in Wrocław proposes that the word "protoplasm" be applied to the formative material of young animal embryos.
1842 Plate from Dictionnaire universel d'histoire naturelle by Charles d'Orbigny
Charles Darwin's 1859 publication On the Origin of Species revolutionised zoology.

1901–1950
Prior to the discovery of a living example in 1938, coelacanths were thought to have been extinct for 65 million years.

1951–2000

21st century

See also

References
  1. Charles A. Reed. Animal Domestication in the Prehistoric Near East: The origins and history of domestication are beginning to emerge from archeological excavations. Science, Vol. 130, no. 3389 (December 11, 1959), pp. 1629–1639
  2. Lascaux, a visit to the cave.
  3. Bancroft, Edward (1769). An Essay on the Natural History of Guiana, in South America: Containing a Description of Many Curious Productions in the Animal and Vegetable Systems of that Country. Together with an Account of the Religion, Manners, and Customs of Several Tribes of Its Indian Inhabitants. Interspersed with a Variety of Literary and Medical Observations. T. Becket and P.A. De Hondt.
  4. Forster, Johann Reinhold (1771). A catalogue of the animals of North America. To which are added short directions for collecting, preserving and transporting all kinds of natural history curiosities. B. White.
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