Skeletons

Endoskeleton

An animal with a backbone and has its skeleton inside their body has a endoskeleton.

Some examples of animals that have an endoskeletons are:

• Human

• Cat

• Mouse

• Pigeon

• Squirrel

• Bear

• Whale

Exoskeleton

An animal with its bones outside its body has an exoskeleton. For an example, a turtle shell is an exoskeleton because they are classed as a bone.

Some examples of animals that have an exoskeletons are:

• Crab

• Snail

• Ant

• Ladybird

• Bee

• Grasshopper

Hydrostatic skeleton

An animal with no bones at all, but do have a liquid within their body has a hydrostatic skeleton. They are more flexible than the over types of skeletons.

Some examples of animals that have a hydrostatic skeleton are:

• Worm

• Jellyfish

• Slug

• Starfish

• Sea anemone

• Squid