Here are a few examples of some Animal Adaptations

Claw:
A claw is a structural adaptation that some animals like eagles use to hunt prey, but some animals like an armadillo use claws to dig burrows.

Shell:
A shell is a structural adaptation that some animals are born with on their body. Most animals use this shell as a protection mechanism against predators.

Fur:
Fur is a structural adaptation that is used by animals to keep warm in extremely cold environments.

Spines:
Spines are an adaptation some animals use to protect them selfs from predators much like a shell, but in a much more painful way.

Teeth:
Teeth are a structural adaptation some animals use to break down food.