横向
1
Egg-laying mammal with a duck bill
3
Largest living primate
7
Wild dog-like animal of North America
8
Fish that swims upstream to spawn
9
Intelligent marine mammal
纵向
1
Flightless bird that swims in cold regions
2
Animal that builds dams
4
Colorful bird that can mimic speech
5
Slow-moving mollusk without a shell
6
Insect with colorful wings