Writing challenge.  3 paragraphs about dolphins.  2 factual, one opinion.

Dolphins are carnivores because they eat fish.
They live in oceans and rivers.  They are mammals.

Dolphins are smart.  Dolphins put coral on their noses so they won't get cut by jagged edges.
 They make sounds to tell other dolphins where food is.

I like dolphins because they are pretty.
 I also like them because there are different kinds and they make great giant splashes.

The End