Answer:
I am covered in quills for protection. What am I?
I am a mammal that lives in the sea. I have flippers and am known for my intelligence. What am I?
Face with a tree, skin like the sea. A great beast I am. Yet vermin frightens me.
I waddle when I walk and swim in cold water. I wear a tuxedo all year round. What am I?
I am a predator with a strong jaw. I live in water and have lots of sharp teeth. What am I?
What made Cyclops quit teaching?