横向
1
Tallest living animal on Earth
4
Egg-laying mammal with a duck bill
5
Crustacean with pincers
6
Slow-moving mollusk without a shell
7
Black big cat of the jungle
8
Burrowing mammal with poor eyesight
纵向
2
Primate closest to humans
3
Australian burrowing marsupial
4
Flightless bird that swims in cold regions
6
Small horse-shaped sea fish
9
Large-eyed primate from Madagascar
10
Animal that builds dams