Organism A
Compare with organism B
Broader grouping ↑
Shared by A and B
Narrower grouping ↓
How related?
Tap any rank
Each rank shows the group organism A belongs to. Tap one to see which other organisms in this tool share it.
Memory trick
Dear King Philip Came Over For Good Soup — domain, kingdom, phylum, class, order, family, genus, species.Pick a mystery animal
Dichotomous key
How the key works
Each question has two answers. Choose the one that fits your animal, and the key leads you to its group. Answer from what you know — the key will tell you if you’re right.
Vertebrates (with a backbone)
Fish · Amphibians · Reptiles · Birds · Mammals
Invertebrates (no backbone)
Insects · Arachnids · Crustaceans · Myriapods · Molluscs · Echinoderms · Worms · Cnidarians · Sponges