Across
1
Australian burrowing marsupial
4
Fish that swims upstream to spawn
8
Egg-laying mammal with a duck bill
9
Clawed sea crustacean
Down
2
Intelligent marine mammal
3
Large North American buffalo
5
Large omnivore that hibernates
6
Eight-armed sea creature
7
Pink bird that stands on one leg
10
South American pack animal
11
Largest mammal in the ocean