Across
1
Burrowing mammal with poor eyesight
4
Wild dog-like animal of North America
5
Fish that swims upstream to spawn
6
Large animal with a horn on its nose
7
Eight-armed sea creature
8
Tallest living animal on Earth
Down
2
Slow-moving reptile with hard shell
3
Animal known for fighting snakes
9
Egg-laying mammal with a duck bill
10
Largest mammal in the ocean
11
Predatory fish with sharp teeth
12
Amphibian that leaps and croaks
13
Slow-moving mollusk without a shell