Across
1
Amphibian that leaps and croaks
3
Intelligent marine mammal
4
Largest mammal in the ocean
6
Wild dog-like animal of North America
7
Slow-moving mollusk without a shell
9
Striped big cat from Asia
11
Graceful animal with antlers
Down
2
Large reptile found near rivers
5
Small spiny mammal
8
Tallest living animal on Earth
10
Fish that swims upstream to spawn
12
Large-eyed primate from Madagascar