Across
1
Largest mammal in the ocean
3
Eight-armed sea creature
4
Slow-moving mollusk without a shell
6
Animal that builds dams
9
Large bird of prey with keen eyesight
Down
2
Egg-laying mammal with a duck bill
5
Amphibian that leaps and croaks
7
Large North American buffalo
8
Small spiny mammal
10
Soft sea creature that can sting
11
Small domesticated weasel-like animal