biology

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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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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Johann Gottlieb Kölreuter and the Study of Plant Fertilization

Johann Gottlieb Kölreuter and the Study of Plant Fertilization

On April 27, 1733, German botanist Joseph Gottlieb Kölreuter was born. Kölreuter was a German botanist who pioneered the study of plant fertilization, hybridization and was the first to detect self-incompatibility. He was an observer as well as a rigorous experimenter who used careful crossing experiments although he did not inquire into the nature of heritability. Joseph Gottlieb Kölreuter was the son of an apothecary in Karlsruhe, Germany. From early age, Kölreuter…
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Félix d’Herelle and the Bacteriophages

Félix d’Herelle and the Bacteriophages

On April 25, 1873, French-Canadian microbiologist Félix d’Herelle was born. D’Herelle was co-discoverer of bacteriophages (viruses that infect bacteria) and experimented with the possibility of phage therapy. D’Herelle has also been credited for his contributions to the larger concept of applied microbiology. Félix d’Herelle began studying microbiology around the age of 24. He had just moved to Canada and began setting up his own laboratory, conducting first experiments. He then also earned…
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Christian Gottfried Ehrenberg – Father of Micropaleontology

Christian Gottfried Ehrenberg – Father of Micropaleontology

On April 19, 1795, German naturalist, zoologist, comparative anatomist, geologist, and microscopist Christian Gottfried Ehrenberg was born. Ehrenberg was one of the most famous and productive scientists of his time. He has been called the founder of micropaleontology (the study of fossil microorganisms). He held that animals, of any size down to the tiniest, have organ systems in common, including muscles, reproductive organs, and stomachs. Christian Gottfried Ehrenberg studied theology at the University of…
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Walter Sutton developed the Chromosome Theory

Walter Sutton developed the Chromosome Theory

On April 5, 1877, American geneticist and physician Walter Stanborough Sutton was born. Sutton’s most significant contribution to present-day biology was his theory that the Mendelian laws of inheritance could be applied to chromosomes at the cellular level of living organisms. This is now known as the Boveri-Sutton chromosome theory. He furthermore provided the first conclusive evidence that chromosomes carry the units of inheritance and occur in distinct pairs. Walter Sutton –…
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