Here are some things about vertebrates
Also their skeletons are made of cartilage. Examples:
Hagfish and Lampreys.
Fun Facts about Cartilaginous fish,Bony fish,Jaw less fish
Hagfish eat decaying remaining of other fish.
Different types of amphibians
Types of amphibians.
Warm blooded or cold blooded?
How are they born.
Frogs and toads are carnivores, and that means that they will eat meat, Small to large sized frogs eat insects such as flys,mosquitoes, moths and dragonflies. Larger frogs will eat bigger insect then the smaller frogs like and the bigger frogs eat grasshoppers and worms. And frogs will even eat small snakes, mice, baby turtles, and even other smaller frogs!
Types of reptiles.
And they have four legs , toes , long tails, internal ears two lungs, and there are herbivores and carnivores and they have movable eyelids.
Alligator and crocodile characteristics.
Things about alligators.
They show a little bit of Their teeth when their mouth is closed.
Alligators don't usually attack humans.
Things about crocodiles.
Most of crocodiles teeth is visible when their mouth is close.