Across
1
Elegant white water bird
3
Egg-laying mammal with a duck bill
4
Largest mammal in the ocean
6
Tallest living animal on Earth
7
Small spiny mammal
9
Graceful animal with antlers
Down
1
Five-armed sea creature
2
Animal that builds dams
5
Large reptile found near rivers
8
Large bird of prey with keen eyesight
10
Predatory fish with sharp teeth