250 Million Years

From Triassic apex predators to modern survivors — trace the crocodile lineage.

Three Families

Alligatoridae, Crocodylidae, and Gavialidae — the three living crocodilian families.

All 26 Species

Every recognized extant crocodilian species with images and details.

Common Misconceptions

Tap each card to flip and see the science.

Threats & Action

Seven species are Critically Endangered. Here's how you can help.

Crocodilia Quiz

10 questions on origins, families, species, and conservation.