Animal Diversity WebUniversity of Michigan's encyclopedia of the animal kingdom.
Animal WebcamsLive and recorded animal cams from zoos and sanctuaries.
BugguideIdentify any insect or spider in North America. Community-sourced, expert-verified.
Cornell Bird LabIdentification guides, songs, and range maps for every bird in North America.
GBIF SpeciesEvery described species on Earth, searchable with distribution maps.
IUCN Red ListThe definitive record of threatened species worldwide. Sobering and searchable.
Macaulay LibraryThe world’s largest archive of wildlife sounds and video. A natural wonder.
MenagerieLive zoo and wildlife cams from around the world, sorted by region and by animal. Pandas, sea otters, African waterholes and guided safari drives, all in one place.