Across
1
Slow-moving reptile with hard shell
6
Large tropical lizard
7
Egg-laying mammal with a duck bill
8
South American pack animal
9
Animal that builds dams
12
Bird of prey with sharp talons
13
Intelligent marine mammal
Down
2
Largest mammal in the ocean
3
Large North American buffalo
4
Five-armed sea creature
5
Soft sea creature that can sting
10
Clawed sea crustacean
11
Elegant white water bird