Share the notion that many critters are designed with parts on their bodies to help them out and protect them. Look at the dinosaur posters or pictures. Examine the Stegosaurus. Look at the Triceratops and see the horns and shield used for protection. Other animals are prickly like a porcupine and sea urchin.
Animals also have behaviors they do to protect and defend themselves.
Think about birds and how they can fly and perch on a tree to get away from a cat. Others can run really fast to get away from their attackers. You can make real animals, or make some pretend ones. Go to a park, the woods or a zoo and look at animals, birds and fish. What Is Happening Critters are all part of a food chain or food web.