Across
1
Tallest living animal on Earth
6
Largest living primate
7
Fastest land animal
9
Large bird of prey with keen eyesight
10
Large North American buffalo
Down
2
Egg-laying mammal with a duck bill
3
Small domesticated weasel-like animal
4
Largest mammal in the ocean
5
Intelligent marine mammal
8
Animal known for fighting snakes
11
Fish that swims upstream to spawn
12
Primate closest to humans
13
Striped big cat from Asia