Want to incorporate some science learning into your child's afternoon routine? This worksheet helps kids understand variations in animals and how the same kind, or species, can sometimes look different from each other. Domesticated dogs, for example, are all members of the species Canis lupus familiaris, but every breed of dog looks different! Kids study each group of animals of the same species, and circle the differences they see.

For a basic exercise on heredity, check out Parents and Offspring.