biology

Joseph Dalton Hooker and Taxonomy

Joseph Dalton Hooker and Taxonomy

On June 30, 1817, Sir Joseph Dalton Hooker was born, one of the greatest British botanists and explorers of the 19th century. Hooker was a founder of geographical botany and Charles Darwin‘s [4] closest friend. Furthermore, he was assistant on Sir James Ross‘s [3] Antarctic expedition and whose botanical travels to foreign lands included India, Palestine and the U.S., from which he became a leading taxonomists in his time. Joseph Dalton Hooker…
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Frank Rattray Lillie and the Fertilization Process

Frank Rattray Lillie and the Fertilization Process

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 was born in Toronto, Ontario, Canada. His…
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Mary Jane Rathbun and the Secret Life of Crustacea

Mary Jane Rathbun and the Secret Life of Crustacea

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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Raymond Pearl and Biometry – Applying Statistics for Medicine and Biology

Raymond Pearl and Biometry – Applying Statistics for Medicine and Biology

On June 3, 1879, American biologist Raymond Pearl was born. Pearl is regarded as one of the founders of biogerontology. Moreover, he is one of the founders of biometry, the application of statistics to biology and medicine. He also pioneered studies in longevity, changes in world population, and genetics. Raymond Pearl earned his PhD in zoology for his work on the behavior of planarians from the University of Michigan. Along with his…
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Sir David Bruce and the Malta Fever

Sir David Bruce and the Malta Fever

On May 29, 1855, Scottish pathologist and microbiologist Sir David Bruce was born. Bruce investigated Malta fever (later called brucellosis in his honour) and African trypanosomiasis (sleeping sickness in humans and nagana in animals). He discovered the first protozoan parasite transmitted by insects, which was later named Trypanosoma brucei after him. David Bruce was born in Melbourne, Australia, to David Bruce, a Scottish engineer and his wife Jane Russell Hamilton, who had…
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Robert Yerkes – From Eugenics to Psychobiology

Robert Yerkes – From Eugenics to Psychobiology

On May 26, 1876, American psychologist, ethologist, eugenicist and primatologist Robert Mearns Yerkes was born. Yerkes is known for his work in intelligence testing and in the field of comparative psychology. He is referred to as a principal developer of comparative (animal) psychology in the U.S. and pioneered in the study both of human and primate intelligence and of the social behavior of gorillas and chimpanzees. Robert Yerkes – Early Years Robert…
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John Jacob Abel and the Endocrine Glands

John Jacob Abel and the Endocrine Glands

On May 19, 1857, American biochemist and pharmacologist John Jacob Abel was born. Abel made important contributions to a modern understanding of the ductless, or endocrine, glands. He extracted a derivative of epinephrine, also known as adrenaline and successfully purified and isolated crystalline insulin. His interest in kidney functions led to his invention of a primitive artificial kidney that was able to remove toxins from the blood of living animals, the precursor…
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Leonhart Fuchs’ Famous Herbal Book

Leonhart Fuchs’ Famous Herbal Book

On May 10, 1566, German Botanist Leonhart Fuchs passed away. Fuchs is best known for authoring a large book about plants and their uses as medicines, i.e. a Herbal Book, published in 1542 in Latin, with about 500 accurate and detailed drawings of plants printed from woodcuts. Leonhart Fuchs became Magister Artium in 1524 and earned his doctor of medicine degree. During the next years, Fuchs practiced as a doctor in Munich and…
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Jean Senebier and the Discovery of Photosynthesis

Jean Senebier and the Discovery of Photosynthesis

On May 6, 1742, Swiss pastor and naturalist Jean Senebier was born. Senebier wrote extensively on plant physiology and was one of the major early pioneers of photosynthesis research. He was the first who demonstrated that green plants consume carbon dioxide and release oxygen under the influence of light. How do the Plants gain their Mass? Before Jean Senebier researched in the field of photosynthesis, other scientists had engaged in the field including Flemish chemist, physiologist,…
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Santiago Ramón y Cajal and the Microscopic Structure of the Brain

Santiago Ramón y Cajal and the Microscopic Structure of the Brain

On May 1, 1852, Spanish pathologist, histologist, neuroscientist, and Nobel laureate Santiago Ramón y Cajal was born. Cajal’s original pioneering investigations of the microscopic structure of the brain have led to his being designated by many as the father of modern neuroscience. His medical artistry was legendary, and hundreds of his drawings illustrating the delicate arborizations of brain cells are still in use for educational and training purposes. “Any man could, if he were so…
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