Across
- 3. They have been referred to as "primitive fish"
- 5. a spiny mammal
- 6. these creatures don't have a brain
Down
- 1. their height is 1.4m to 2.1m
- 2. Look Like Dogs but Are Not Related
- 3. expand themselves when in danger
- 4. lion of the ocean
- 6. related to dogs, coyotes, foxes, and wolves.