AnimalWiki

The animal kingdom, in one place.

Photographs, common names and family trees for 756,338 animal species — from the blue whale down to the water bear.

Or start here:LionAxolotlBlue WhaleCommon OctopusEmperor PenguinMonarch ButterflyGrey WolfWater Bear

Pick a group

Twenty ways in, from the ones everybody knows to the ones almost nobody does. Each opens onto everything beneath it.

Photographs by iNaturalist contributors, under the Creative Commons licences credited on each animal's own page.

Meet a few of them

Animals someone has taken the trouble to write about — what they do, where they live, and why they are worth knowing.

Or browse by idea

Collections that cut across the family tree — grouped by what animals do, where they live, or what they mean to us.

See every list →

The shape of the animal kingdom

Every animal alive belongs to one of these 23 great branches. Four out of every five described species are arthropods — insects, spiders, crabs and their relatives — and everything with a backbone fits in the second bar down.

Open the whole tree · Start at the kingdom (756,338 species)

What is in here

756,338Animal species
158,766With a photograph
250,258Written up
12Curated lists

AnimalWiki is free to read, free to reuse, and written in the open. If you spot something wrong or know something worth adding, you can fix it yourself — here is how it works.