Across
1
Soft sea creature that can sting
4
Wild dog-like animal of North America
6
Fish that swims upstream to spawn
8
Large omnivore that hibernates
9
Large animal with a horn on its nose
10
Tallest living animal on Earth
11
Slow-moving mollusk without a shell
Down
2
Amphibian that leaps and croaks
3
Fastest land animal
5
Flightless bird that swims in cold regions
7
Clawed sea crustacean