Across
1
Egg-laying mammal with a duck bill
4
Slow-moving mollusk without a shell
6
Australian burrowing marsupial
8
Large bird of prey with keen eyesight
9
Clawed sea crustacean
10
Large North American buffalo
Down
1
Flightless bird that swims in cold regions
2
Slow-moving reptile with hard shell
3
Elegant white water bird
5
Intelligent marine mammal
7
Dog-like scavenger of Africa