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.
Linnaeus was a renowned Swedish botanist, zoologist, and taxonomist who formalized the modern system of naming organisms.
Ernst Mayr was a renowned biologist, ornithologist, and historian of science who made significant contributions to the field of evolutionary biology.
William Beebe was a pioneering American naturalist, ornithologist, and marine biologist who explored and documented the wonders of the natural world.