Across
1
Animal that builds dams
4
Soft sea creature that can sting
5
Burrowing mammal with poor eyesight
6
Fish that swims upstream to spawn
7
Clawed sea crustacean
Down
2
Slow-moving reptile with hard shell
3
Large animal with a horn on its nose
4
Dog-like scavenger of Africa
8
Largest mammal in the ocean