Title By Description Created Last modifiedsort descending
John George Children (1777–1852) Brittany Kaminsky John George Children described several species of insects and animals while working at the British Museum in London, England, in the eighteenth and nineteenth centuries. Children also conducted research on chemical batteries called voltaic cells and briefly studied and manufactured gunpowder. One of the species he described, the Children’s python, or Antaresia children, was used in the twenty-first century as the subject of experiments that involved the biological cost of reproduction in snakes. 2018-03-25 4 Jul 2018 - 4:40:59am
Leonardo da Vinci (1452-1519) Hilary Gilson Leonardo da Vinci was born on 15 April 1452, the illegitimate son of a young peasant girl by the name of Caterina and Ser Piero da Vinci, a well-renowned Florentine notary. Leonardo lived in Italy in the town of Vinci until his late teens and received a simple education in reading and writing as well as some training in mathematics and engineering. Although he was socially excluded by birthright from almost every profession and prohibited from attending any formal university, Leonardo went on to become a celebrated scientist, artist, and engineer. 2008-08-26 4 Jul 2018 - 4:40:59am
C. R. Stockard, W. E. Carrey, Robert Chambers undated 4 Jul 2018 - 4:40:59am
Francois Jacob (1920-2013) Valerie Racine Francois Jacob studied in bacteria and bacteriophages at the Institut Pasteur in Paris, France, in the second half of the twentieth century. In 1965, Jacob won the Nobel Prize in Physiology or Medicine with Andre M. Lwoff and Jacques L. Monod for their work on the genetic control of enzyme synthesis. Jacob studied how genes control and regulate metabolic enzymes in the bacterium Escherichia coli (E. coli) and in lysogenic bacterial systems. He contributed to theories of transcriptional gene 2014-09-29 4 Jul 2018 - 4:40:59am
Mrs. Alfred (Mary) Huettner on a boat to Martha's Vineyard Alfred F. (Alfred Francis) Huettner 1921 4 Jul 2018 - 4:40:59am
Camping in Woods Hole Alfred F. (Alfred Francis) Huettner 4 Jul 2018 - 4:40:59am
Conrad Hal Waddington (1905-1975) Adam R. Navis Conrad Hal Waddington was an embryologist and theoretical biologist. His early experimental work investigated aspects of embryonic induction and the properties of the organizer first identified by Hans Spemann and Hilde Mangold, while his later studies focused on genetic assimilation. Waddington is probably best known for developing the concept of the epigenetic landscape, and he also held significant interest in many different areas ranging from the visual arts and poetry to philosophy. 2007-11-08 4 Jul 2018 - 4:40:59am
Roy John Britten (1919-2012) Abhinav Mishra Roy John Britten studied DNA sequences in the US in the second half of the twentieth century, and he helped discover repetitive elements in DNA sequences. Additionally, Britten helped propose models and concepts of gene regulatory networks. Britten studied the organization of repetitive elements and, analyzing data from the Human Genome Project, he found that the repetitive elements in DNA segments do not code for proteins, enzymes, or cellular parts. Britten hypothesized that repetitive elements helped cause cells to 2014-10-24 4 Jul 2018 - 4:40:59am
Jack Cattell 1923 4 Jul 2018 - 4:40:59am
George Linius Streeter (1873-1948) Kimberly A. Buettner George Linius Streeter was born on 12 January 1873 in Johnstown, New York, to Hannah Green Anthony and George Austin Streeter. He completed his undergraduate studies at Union College in 1895 and received his MD degree from the College of Physicians and Surgeons of Columbia University in 1899. At Columbia, Professor George S. Huntington sparked Streeter's interest in anatomy, and Streeter also interned at Roosevelt Hospital in New York City. He then went on to Albany to teach anatomy at the Albany Medical College and to work with neurologist Henry Hun. 2007-11-01 4 Jul 2018 - 4:40:59am
Hans Spemann (1869-1941) Karen Wellner Hans Spemann was an experimental embryologist best known for his transplantation studies and as the originator of the "organizer" concept. One of his earliest experiments involved constricting the blastomeres of a fertilized salamander egg with a noose of fine baby hair, resulting in a partially double embryo with two heads and one tail. 2010-06-15 4 Jul 2018 - 4:40:59am
Matthias Jacob Schleiden (1804–1881) Sara Parker Matthias Jacob Schleiden helped develop the cell theory in Germany during the nineteenth century. Schleiden studied cells as the common element among all plants and animals. Schleiden contributed to the field of embryology through his introduction of the Zeiss microscope lens and via his work with cells and cell theory as an organizing principle of biology. 2017-05-29 4 Jul 2018 - 4:40:59am
Beatrice Mintz (1921- ) Adam R. Navis Beatrice Mintz is a brilliant researcher who has developed techniques essential for many aspects of research on mouse development. She produced the first successful mouse chimeras and meticulously characterized their traits. She has worked with various cancers and produced viable mice from the cells of a teratoma. Mintz participated in the development of transgenic mice by the incorporation of foreign DNA into a mouse genome. 2009-01-21 4 Jul 2018 - 4:40:59am
1895 Zoology Course Photograph on Schooner Baldwin Coolidge 1895 4 Jul 2018 - 4:40:59am
Francis Sellers Collins (1950- ) Tito Carvalho Francis Sellers Collins helped lead the International Human Genome Sequencing Consortium, which helped describe the DNA sequence of the human genome by 2001, and he helped develop technologies used in molecular genetics while working in the US in the twentieth and twenty-first centuries. He directed the US National Center for Human Genome Research (NCHGR), which became the National Human Genome Research Institute (NHGRI), of the US National Institutes of Health (NIH), located in Bethesda, Maryland, from 1993 to 2008. 2014-04-10 4 Jul 2018 - 4:40:59am
Rebecca and Donald Lancefield with Mary Huettner Alfred F. (Alfred Francis) Huettner 1918 4 Jul 2018 - 4:40:59am
Alexis Carrel (1873-1944) Adam R. Navis Alexis Carrel was a doctor and researcher who studied tissue cultures. He continued Ross Granville Harrison's research and produced many improvements in the field of tissue culture and surgery. He was the recipient of the 1912 Nobel Prize in Physiology or Medicine for his development of surgical techniques to repair blood vessels. Carrel was born on 28 June 1873 in Sainte-Foy-les-Lyon, France, to Anne-Marie Ricard and Alexis Carrel Billiard. His father died when he was five years old. 2008-02-29 4 Jul 2018 - 4:40:59am
Warren Harmon Lewis (1870-1964) Kimberly A. Buettner As one of the first to work at the Carnegie Institution of Washington Department of Embryology, Warren Harmon Lewis made a number of contributions to the field of embryology. In addition to his experimental discoveries on muscle development and the eye, Lewis also published and revised numerous works of scientific literature, including papers in the Carnegie Contributions to Embryology and five editions of Gray's Anatomy. 2007-11-01 4 Jul 2018 - 4:40:59am
Thomas Hunt Morgan with daughters Alfred F. (Alfred Francis) Huettner 1918 4 Jul 2018 - 4:40:59am
Sidney Q. Cohlan (1915-1999) Bianca Zietal, Chanapa Tantibanchachai Sidney Q. Cohlan studied birth defects in the US during the twentieth century. Cohlan helped to discover that if a pregnant woman ate too much vitamin A her fetus faced a higher than normal risk of teratogenic effects, such as cleft palate. A teratogen is a substance that causes malformation of a developing organism. Cohlan also identified the teratogenic effects of several other substances including a lack of normal magnesium and prenatal exposure to the antibiotic tetracycline. 2017-06-18 4 Jul 2018 - 4:40:59am
Carl Richard Moore (1892-1955) Mary Drago Carl Richard Moore was a professor and researcher at the University of Chicago in Chicago, Illinois who studied sex hormones in animals from 1916 until his death in 1955. Moore focused on the role of hormones on sex differentiation in offspring, the optimal conditions for sperm production, and the effects of vasectomy or testicular implants on male sex hormone production. Moore's experiments to create hermaphrodites in the laboratory contributed to the theory of a feedback loop between the pituitary and fetal gonadal hormones to control sex differentiation. 2014-02-18 4 Jul 2018 - 4:40:59am
Dixie Pelluet 1928 4 Jul 2018 - 4:40:59am
Sir Graham Collingwood Liggins (1926-2010) Kathleen O'Connor Sir Graham Collingwood Liggins devoted much of his professional life to obstetric research. Liggins demonstrated that hormones created by the fetus helped initiate labor, rather than hormones originating solely from the mother. Liggins also discovered that cortisol given to pregnant mothers helped delay premature labor, and that it increased the likelihood that premature infants would breathe normally after birth. Prior to cortisol treatment, premature infants often died of respiratory distress syndrome characterized by the inability to inflate immature lungs. 2012-02-16 4 Jul 2018 - 4:40:59am
Thomas Joseph King Jr. (1921-2000) Sean Cohmer Thomas Joseph King Jr. was a developmental biologist who, with fellow scientist Robert Briggs, pioneered a method of transplanting nuclei from blastula cells into fresh egg cells lacking nuclei. This method, dubbed nuclear transplantation, facilitated King's studies on cancer cell development. King's work was instrumental for the development of cloning of fish, insects, and mammals. 2012-01-01 4 Jul 2018 - 4:40:59am
Norman Haire (1892-1952) Claudia Nunez-Eddy Norman Haire was a physician who advocated for eugenics, which is the betterment of human population by promoting positive traits, and birth control rights in the twentieth century in both Australia and the UK. In the UK, Haire joined the Malthusian League, a contraception advocacy organization, and helped the League open the first physician-supervised birth control clinic, called Walworth Women’s Welfare Centre in London, England. 2017-04-13 4 Jul 2018 - 4:40:59am
1893 Scientists, group 1 (Overlay) Baldwin Coolidge 1893 4 Jul 2018 - 4:40:59am
Georges Cuvier (1769-1832) Valerie Racine Georges Cuvier, baptized Georges Jean-Leopold Nicolas-Frederic Cuvier, was a professor of anatomy at the National Museum of Natural History in Paris, France, through the late eighteenth and early nineteenth centuries. Scholars recognize Cuvier as a founder of modern comparative anatomy, and as an important contributor to vertebrate paleontology and geology. Cuvier studied the form and function of animal anatomy, writing four volumes on quadruped fossils and co-writing eleven volumes on the natural history of fish with Achille Valenciennes. 2013-07-10 4 Jul 2018 - 4:40:59am
H. E. Woodward 1935 4 Jul 2018 - 4:40:59am
Barbara Seaman (1935–2008) Rainey Horwitz Barbara Seaman was a writer, investigator, and advocate for female healthcare rights during the twentieth century in the United States. Seaman’s work addressed the gendered prejudice she observed in the US healthcare system and argued that women of the 1960s lacked the proper tools to make informed decisions about pregnancy care, breastfeeding, childbirth, and contraception. Seaman wrote the book The Doctor’s Case Against the Pill in 1969 to expose the dangers in prescribing and consuming high doses of estrogen in the form of birth control. 2018-05-25 4 Jul 2018 - 4:40:59am
Edward Drinker Cope (1840-1897) Karla T. Moeller Edward Drinker Cope studied fossils and anatomy in the US in the late nineteenth century. Based on his observations of skeletal morphology, Cope developed a novel mechanism to explain the law of parallelism, the idea that developing organisms successively pass through stages resembling their ancestors. Others had proposed the addition of new body forms at the end of an individual organism's developed as a mechanism through which new species arose, but those proposals relied on changes in the lengths of gestation or incubation. 2012-01-01 4 Jul 2018 - 4:40:59am
1895 Vertebrates Course Photograph Baldwin Coolidge 1895 4 Jul 2018 - 4:40:59am
Nettie Maria Stevens (1861-1912) Kaitlin Smith Multiple theories about what determines sex were tested at the turn of the twentieth century. By experimenting on germ cells, cytologist Nettie Maria Stevens collected evidence to support the connection between heredity and the sex of offspring. Stevens was able to interpret her data to conclude that chromosomes have a role in sex determination during development. For her time, she was an emerging breed: a woman of science making the leap from the world of data collection to that of male-dominated interpretive work. 2010-06-20 4 Jul 2018 - 4:40:59am
Samuel Randall Detwiler (1890-1957) Adam R. Navis Samuel Randall Detwiler was an embryologist who studied neural development in embryos and vertebrate retinas. He discovered evidence for the relationship between somites and spinal ganglia, that transplanted limbs can be controlled by foreign ganglia, and the plasticity of ganglia in response to limb transplantations. He also extensively studied vertebrate retinas during and after embryonic development. 2007-11-01 4 Jul 2018 - 4:40:59am
Franz Josef Kallmann (1897–1965) Jessica Resnick Franz Josef Kallmann studied the biological and genetic factors of psychological disorders in Germany and the United States in the twentieth century. His studies at the New York State Psychiatric Institute in New York City, New York, focused on the genetic factors that cause psychiatric disorders. Kallmann was one of the first to use twins to study how a mental disorder is passed on by comparing the occurrence of epilepsy and schizophrenia in both fraternal and identical twins. 2017-04-06 4 Jul 2018 - 4:40:59am
Harald zur Hausen (1936–) Grace Kim Harald zur Hausen studied viruses and discovered that certain strains of the human papilloma virus (HPV), a sexually transmitted disease, can cause cervical cancer, in Europe during the twentieth and twenty-first centuries. Zur Hausen spent his research career identifying the viruses that cause diseases, particularly cancer-causing viruses (oncoviruses). He primarily focused on HPV and cervical cancer. Zur Hausen hypothesized that HPV was cancerous and discovered that two strains, HPV 16 and 18, caused cervical cancer. 2017-07-24 4 Jul 2018 - 4:40:59am
George Weill 1928 4 Jul 2018 - 4:40:59am
Wilhelm Ludvig Johannsen (1857-1927) B. R. Erick Peirson Wilhelm Ludvig Johannsen studied plants and helped found the field of genetics, contributing methods and concepts to the study of heredity around the turn of the twentieth century in Denmark. His experiments on heredity and variation in plants influenced the methods and techniques of geneticists, and his distinction between the genotype of an organism-its hereditary disposition-and its phenotype-its observable characteristics-remains at the core of contemporary biology. Johannsen criticized biological explanations that relied on concepts such as vitalism and teleology. 2012-11-16 4 Jul 2018 - 4:40:59am
Elizabeth Blackwell (1821–1910) Alexis Darby In the nineteenth century, Elizabeth Blackwell was a women’s healthcare reformer and the first woman to receive her medical degree in the United States. She practiced medicine as a primary care physician in both the United States and the United Kingdom. Blackwell graduated medical school from Geneva Medical College in Geneva, New York, where she was the first woman to receive a medical degree in the US. 2017-12-19 4 Jul 2018 - 4:40:59am
Jacques Loeb (1859-1924) Steve Elliott Jacques Loeb experimented on embryos in Europe and the United States at the end of the nineteenth and beginning of the twentieth centuries. Among the first to study embryos through experimentation, Loeb helped found the new field of experimental embryology. Notably, Loeb showed scientists how to create artificial parthenogenesis, thus refuting the idea that spermatozoa alone were necessary to develop eggs into embryos and confirming the idea that the chemical constitution of embryos environment affected their development. 2009-06-10 4 Jul 2018 - 4:40:59am
Mary Huettner in a canoe Alfred F. (Alfred Francis) Huettner 1923 4 Jul 2018 - 4:40:59am
Matthew Stanley Meselson (1930– ) Victoria Hernandez 2017-05-23 4 Jul 2018 - 4:40:59am
James William Kitching (1922-2003) Paige Madison James William Kitching collected and studied fossils of dinosaurs and early humans in the twentieth century. He worked at the Bernard Price Institute for Paleontological Research in South Africa. During the fifty-three years he worked at the institute, Kitching spent eighteen of those in the field uncovering fossils. Kitching recovered fossils of early human ancestors, later called Australopithecines, as well as fossils of dinosaurs and ancient mammals. When he died in 2003, the Bernard Price Institute housed one of the largest fossil collections in the southern hemisphere. 2015-03-31 4 Jul 2018 - 4:40:59am
George Gray and Great White Shark Alfred F. (Alfred Francis) Huettner 1921 4 Jul 2018 - 4:40:59am
Bernard Nathanson (1926-2011) Mark Zhang Bernard Nathanson was an obstetrician and gynecologist in New York City, New York, who argued for, and later against, women's rights to abortion. Between 1970 and 1979, Nathanson oversaw at least 75,000 abortions, 5,000 of which he performed himself, earning him the nickname of abortion king. However, his views regarding abortion shifted in 1973, after he watched an abortion using ultrasound imaging technology. Afterwards, Nathanson began to oppose women's rights to abortion, and he published the anti-abortion book Aborting America and produced the film Silent Scream. 2013-04-22 4 Jul 2018 - 4:40:59am
Pope Innocent XI (1611-1689) Katherine Brind'Amour, Benjamin Garcia Pope Innocent XI, born Benedetto Odescalchi, made considerable contributions to the Roman Catholic approach to embryology by condemning several propositions on liberal moral theology in 1679, including two related to abortion and ensoulment. His rejection of these principles strengthened the Church's stance against abortion and for the idea of "hominization," meaning the presence of human qualities before birth. 2007-11-11 4 Jul 2018 - 4:40:59am
Pierre Budin (1846-1907) Kelsey Rebovich Pierre Constant Budin worked in France to improve the lives of newborns and their mothers during the late nineteenth century. Budin stressed the importance of proper nutrition in infants and educated new mothers on breastfeeding and infant care. Budin established infant care facilities and created a nutritional check-up system for infants. Budin helped design early artificial nipples, breast pumps, and incubators for premature newborns. He also began the practice of consulting with new mothers after they gave birth, redefining the roles of obstetricians. 2017-02-11 4 Jul 2018 - 4:40:59am
Theodora (Theo) Emily Colborn (1927-2014) Alexis Abboud Theodora Colborn studied how chemicals affect organisms as they develop and reproduce during the twentieth and twenty first centuries in the US. By the 1940s, researchers had reported that chemicals from agricultural and industrial processes affected how wild organisms developed, but in 1991, Colborn organized the Wingspread Conference in Racine, Wisconsin, at which a group of scientists classed these chemicals as environmentally harmful substances. Colborn and her colleagues called those chemicals endocrine disruptors, as they mimic or block the body's endocrine system. 2014-12-30 4 Jul 2018 - 4:40:59am
Moses Kunitz and N. West 1924 4 Jul 2018 - 4:40:59am
Jeffrey Keenan (1961- ) Nicole Lopez Jeffrey Keenan is the Director of the Southeastern Center for Fertility and Reproductive Medicine and the main developer behind the National Embryo Donation Center (NEDC) in Knoxville, Tennessee. This non-profit organization focuses on embryo donation and embryo adoption. 2010-06-17 4 Jul 2018 - 4:40:59am
Allan Charles Wilson (1934-1991) Dorothy Haskett Allan C. Wilson studied genes, proteins, and body structures of animals and humans in the US during the second half of the twentieth century. Wilson also studied human evolution. Although morphology and behaviors of humans (Homo sapiens) and great apes differ, Wilson found that they have biochemical and genetic similarities. Wilson and his colleagues calculated the time period of humans' and African apes' common ancestor. 2014-07-24 4 Jul 2018 - 4:40:59am