If you could be any animal at all, what would it be and why?

I think I would be dolphin. Then I could swim in the sea. I could jump the waves. I could dive in the water. I could catch fish without a line. Sharks are scared of dolphins so I wouldn't be scared. I could dive deep,deep down and look for pirate ships. I could learn to do tricks like Flipper. I think it would be very fun to be a dolphin.