Bertha Cady (1873–1956), American entomologist and educator Audrey Cahn (1905–2008) Australian microbiologist and nutritionist Eleanor Carothers (1882–1957), American zoologist, geneticist and cytologist Rachel Carson (1907–1964), American marine biologist and conservationist Edith Katherine Cash (1890–1992), American mycologist and lichenologist Ann Chapman (1937–2009), New Zealand biologist and limnologist Martha Chase (1927–2003), American molecular biologist