Across
1
Insect with colorful wings
5
Large North American buffalo
7
Intelligent marine mammal
8
Graceful animal with antlers
9
Egg-laying mammal with a duck bill
10
Large reptile found near rivers
Down
2
Eight-armed sea creature
3
Tallest living animal on Earth
4
Australian marsupial that eats eucalyptus
6
Slow-moving reptile with hard shell