James Dwight Dana was a renowned American geologist, mineralogist, and zoologist who made significant contributions to the understanding of the Earth's crust and marine life.
Ernst Mayr was a renowned biologist, ornithologist, and historian of science who made significant contributions to the field of evolutionary biology.
Sewall Wright was an American geneticist and evolutionary biologist who made significant contributions to the development of modern evolutionary theory.
Konrad Lorenz was an Austrian zoologist and Nobel laureate, renowned for his pioneering work in ethology and comparative psychology.