Across
1
Intelligent marine mammal
4
Crustacean with pincers
6
Large North American buffalo
7
Egg-laying mammal with a duck bill
8
Australian marsupial that eats eucalyptus
9
Animal that builds dams
Down
2
Insect with colorful wings
3
Predatory fish with sharp teeth
5
Fish that swims upstream to spawn
10
Primate closest to humans