横向
1
Australian marsupial that hops
6
Burrowing mammal with poor eyesight
7
Egg-laying mammal with a duck bill
纵向
2
Dog-like scavenger of Africa
3
Predatory fish with sharp teeth
4
Small horse-shaped sea fish
5
Fish that swims upstream to spawn
8
Largest mammal in the ocean
9
Insect with colorful wings