Across
1
Flightless bird that swims in cold regions
3
South American pack animal
4
Dog-like scavenger of Africa
5
Large reptile found near rivers
9
Bird of prey with sharp talons
10
Egg-laying mammal with a duck bill
11
Tallest living animal on Earth
Down
2
Australian marsupial that hops
6
Fish that swims upstream to spawn
7
Intelligent marine mammal
8
Graceful animal with antlers