Across
- 5. The smallest planet
- 6. National bird
- 7. It has transparent wings
Down
- 1. A group of them is called an ambush
- 2. The fastest underwater sprinter
- 3. Named after the Roman God Vulcan
- 4. It has 67 moons
- 6. Its teeth never stop growing
- 7. Also called a sea canary
- 8. The second biggest cat