United States naturalist (born in Switzerland) who studied fossil fish; recognized geological evidence that ice ages had occurred in North America (18 more..United States naturalist (born in Switzerland) who studied fossil fish; recognized geological evidence that ice ages had occurred in North America (1807-1873)(noun.person)
Dutch naturalist and microscopist who proposed a classification of insects and who was among the first to recognize cells in animals and was the first more..Dutch naturalist and microscopist who proposed a classification of insects and who was among the first to recognize cells in animals and was the first to see red blood cells (1637-1680)(noun.person)
(philosophy) the doctrine that the world can be understood in scientific terms without recourse to spiritual or supernatural explanations (noun.cognition)
domain category (naturalist is domain category of ....)
a biologist knowledgeable about natural history (especially botany and zoology)(noun.person)