Subclasses: 3 Orders: ~27 Families: ~167 Genera: ~1,314 Species: ~6,400 We should all be familiar with mammals because us humans are mammals too! Mammals are arguably th… See more

Subclasses: 2 Orders: ~40 Families: ~249 Genera: ~2353 Species: ~10,806 Most of us are … See more

Subclasses: 3 Orders: 4 Families: ~92 Genera: ~1216 Species: ~11,440 The Reptilia class includes turtles and tortoises, crocodiles and alligators, lizards and skinks … See more

Subclasses: 1 Orders: 3 Families: ~74 Genera: ~565 Species: ~8,301 Amphibians are often lumped in with reptiles, but they are very much their own group of animals! The amphi… See more