Different or Same?

Animals are amazing. They look similar in many ways, but they’re also very different. Let’s look at a shark and a dolphin. They both live underwater. They have fins and a tail to help them move in the water. They both eat fish. Can we say they’re the same? No, we can’t. They’re very different from each other. A shark is a fish, but a dolphin is not a fish. It’s a mammal, just like you and me!  It breathes air. Dolphins don’t lay eggs. Some sharks lay eggs like other fish. Sharks have gills. They breathe with them underwater. Dolphins don’t have gills. They come out of the water and breathe.

I have a nice book about underwater animals. I read and learn many things.  It has a lot of pictures. I like looking at them.