Across
1
Five-armed sea creature
5
Animal known for fighting snakes
6
Flightless bird that swims in cold regions
9
Small horse-shaped sea fish
10
Animal that builds dams
11
Dog-like scavenger of Africa
12
South American pack animal
Down
2
Small spiny mammal
3
Egg-laying mammal with a duck bill
4
Intelligent marine mammal
7
Fastest land animal
8
Tallest living animal on Earth
13
Primate closest to humans