It's simple: draw an animal whose was born from parents of different species. Be imaginative and a little silly. Think about how to integrate aspects of two species into a new animal. Use pencil, and don't be afraid to erase parts and try again!
Scroll over the sketches in the gallery, below. Like a centaur or mermaid, the Animal Mash-ups all have the body of one animal and head of another. How will how your new animal's looks represent the differing characteristics of each parent?