a Carousel of Every Vertebrate Animal class!
Mammals
We ourselves are mammals, so why not let the first slide be dedicated to it?
Birds
Feathers and flight (mainly), they are usually beaked animals able to lay eggs
Reptiles
Scaly bony-plated animals, they are the cold-blooded creatures of the animal kingdom.
amphibians
Small ectothermic tetrapod vertebrates, these creatures have slimy skin and inhabit many different environments.
Fish
Fish, they are fish, mainly underwater scaled individuals with gills.