anatomist, animal physiologist, anthropologist, bacteriologist, biochemist, biologist, biometrist, biophysicist, botanist, conchologist, cytologist, ecologist, entomologist, ethologist, geneticist, helminthologist, herpetologist, ichthyologist, malacologist, mammalogist, natural scientist, naturalist, ophiologist, ornithologist, physiologist, protozoologist, taxidermist, zoo-ecologist, zoographer, zoonomist, zoopathologist, zoophysicist, zootaxonomist