All animals have skin.
The skin is waterproof.
The skin protects muscles, bones and organs.
Mammals have fur.
Fur is made of hair.
Fur keeps the animal warm.
Birds have feathers.
Feathers are waterproof.
Birds need feathers for flying, keeping warm and attracting other birds.
Fish and reptiles have scales.
Scales are waterproof.
Some animals, like chameleons, change colour to reflect their moods.
Chameleons use camouflage to help them hide from predators.
Other animals, like ladybirds, have bright colours.
Bright colours tell predators that they aren’t good to eat.