Across
- 1. A liquid that mothers produce for their babies to drink
- 2. An egg-laying mammal from Australia
- 3. What covers the bodies of mammals
- 5. Are mammals warm or cold-blooded?
- 7. A word that refers to an animal with a backbone
Down
- 1. A type of mammal that carries its babies in a pouch until they are big enough
- 4. The most populated family of mammal
- 6. A family of flying mammals