Across
1
Wild dog that hunts in packs
4
Fish that swims upstream to spawn
5
Flightless bird that swims in cold regions
6
Small horse-shaped sea fish
8
Large animal with a horn on its nose
10
Elegant white water bird
11
Intelligent marine mammal
12
Amphibian that leaps and croaks
Down
2
Eight-armed sea creature
3
Tallest living animal on Earth
7
Primate closest to humans
9
Large reptile found near rivers