横向
1
Fish that swims upstream to spawn
4
Largest mammal in the ocean
6
South American pack animal
9
Burrowing mammal with poor eyesight
纵向
2
Animal known for fighting snakes
3
Egg-laying mammal with a duck bill
5
Wild dog that hunts in packs
7
Crustacean with pincers
8
Australian marsupial that eats eucalyptus