Audubon Society
National Wildlife Service
Sierra Club
animal physiologist
anthropologist
biologist
conchologist
conservationist
conservator
deliverer
ecologist
entomologist
ethologist
forest ranger
game warden
helminthologist
herpetologist
ichthyologist
keeper
lifesaver
malacologist
mammalogist
ophiologist
ornithologist
preservationist
preserver
protozoologist
ranger
rescuer
safekeeper
saver
savior
zoo-ecologist
zoographer
zoologist
zoonomist
zoopathologist
zoophysicist
zootaxonomist
artificer
artisan
craftsman
journeyman
anthropologists
appraisers
artillerist
biochemist
canoeist
darning
disunionist
drillmaster
fencer
geometrician
hypnotist
manoeuver
neurologists
oculist
paddler
paleontologists
physiognomist
pilotage
size-up
spelunker
stage-manage
ultraism
woodsman