Across
1
South American pack animal
4
Large North American buffalo
6
Egg-laying mammal with a duck bill
8
Fish that swims upstream to spawn
9
Slow-moving reptile with hard shell
11
Fastest land animal
Down
2
Australian marsupial that hops
3
Striped African horse-like animal
5
Wild dog that hunts in packs
7
Five-armed sea creature
10
Large tropical lizard
12
Small domesticated weasel-like animal