横向
1
Australian marsupial that hops
5
South American pack animal
6
Bird of prey with sharp talons
9
Slow-moving mollusk without a shell
纵向
2
Dog-like scavenger of Africa
3
Flightless bird that swims in cold regions
4
Largest living primate
6
Small spiny mammal
7
Large bird of prey with keen eyesight
8
Egg-laying mammal with a duck bill