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Johan Christian Fabricius and his Classification System for Insects

Johan Christian Fabricius and his Classification System for Insects

Harald Sack
On January 7, 1745, Danish zoologist Johan Christian Fabricius was born. He was a student of Carl Linnaeus [1], and is considered one of the most important entomologists of the 18th century, having named nearly 10,000 species of animal, and established the basis for modern insect classification. Johan Christian Fabricius – Early Years Johan Christian Fabricius was born in Tønder in the Duchy of Schleswig, where his father was a doctor. Already while still…
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medical science
Fritz Schaudinn and the ‘French Disease’

Fritz Schaudinn and the ‘French Disease’

Tabea Tietz
On March 3, 1905, German zoologist Fritz Schaudinn together with dermatologist Erich Hoffmann discovered the causative agent of syphilis, the spiral-shaped Spirochaeta pallida, at Berlin Charité Clinic. The Origin of Syphilis The origin of syphilis is not very clear, but it is assumed that it was present in the Americas before European contact. Many historical scientists assume, that the illness was carried to Europe by the returning crewmen from Christopher Columbus‘s voyage.…
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zoology
Libbie Hyman and her Passion for the Invertebrates

Libbie Hyman and her Passion for the Invertebrates

Harald Sack
On December 6, 1888, U.S. zoologist Libbie Henrietta Hyman was born. Hyman wrote two laboratory manuals and a comprehensive six-volume reference work, The Invertebrates, (1940-67) covering most phyla of its subject. This work, important for its organization, description and classification of invertebrates, is a reference still used today. Early Years Libbie Hyman was born in Des Moines, Iowa, USA, the third of four children and the only daughter of Joseph Hyman, a…
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medical science
August Krogh and the Capillary Motor Regulation Mechanism

August Krogh and the Capillary Motor Regulation Mechanism

Tabea Tietz
On November 15, 1874, Danish zoophysiologist August Krogh was born. Krogh contributed a number of fundamental discoveries within several fields of physiology, and is famous for developing the Krogh Principle, which states that “for such a large number of problems there will be some animal of choice, or a few such animals, on which it can be most conveniently studied.” In 1920 August Krogh was awarded the Nobel Prize in Physiology or Medicine for…
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zoology
Paul Bartsch Interest in Molluscs

Paul Bartsch Interest in Molluscs

Tabea Tietz
On August 14, 1871, American malacologist and carcinologist Paul Bartsch was born, Bartsch was an authority on molluscs, but had broad interests in natural history including plants and birds. He was named the last of those belonging to the “Descriptive Age of Malacology. Paul Bartsch – Youth and Education Paul Bartsch was born in Tuntschendorf, Silesia, and emigrated with his parents to the U.S.A in 1880, first to Missouri and then to Burlington,…
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zoology
Frank Lillie and the Fertilization Process

Frank Lillie and the Fertilization Process

Tabea Tietz
On June 27, 1870, American zoologist and an early pioneer of the study of embryology Frank Rattray Lillie was born. Lillie is known for his discoveries concerning the fertilization of the egg (ovum) and the role of hormones in sex determination. He was instrumental in the development of the field of embryology. He identified the influence of potassium on cell differentiation and elucidated the biological mechanisms behind free-martins. Frank Lillie – Early Years Frank Lillie…
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biology
Mary Jane Rathbun and the Secret Life of Crustacea

Mary Jane Rathbun and the Secret Life of Crustacea

Tabea Tietz
On June 11, 1860, American zoologist Mary Jane Rathbun was born. Rathbun established the basic taxonomic information on Crustacea. For many years she was the Smithsonian’s complete department of marine invertebrates where she studied, cataloged, and preserved specimens. Through her basic studies and published works, she fixed the nomenclature of Crustacea and was the recognized, and the much sought after, authority in zoology and carcinology. A Self-taught Zoologist Mary Jane Rathbun was…
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biology
The Wonderful World of Thomas Pennant, Zoologist

The Wonderful World of Thomas Pennant, Zoologist

Harald Sack
On June 14, 1726, Welsh naturalist, traveller, writer and antiquarian Thomas Pennant was born. As a naturalist he had a great curiosity, observing the geography, geology, plants, animals, birds, reptiles, amphibians and fish around him and recording what he saw and heard about. He wrote acclaimed books including British Zoology, the History of Quadrupeds, Arctic Zoology and Indian Zoology although he never travelled further afield than continental Europe. Thomans Pennant – Early…
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