Jump for joy
Dolphins do this. Why? Maybe just for fun. If you've ever seen the amazing games they play with air bubbles, you'll know what I mean. If you haven't, check this out:https://plus.google.com/117663015413546257905/posts/W8AAhgY1tCz
It was one of my most popular posts!
But people actually debate this question. Here's what they say at Dolphins-World
:Why do dolphins jump out of the water?There is an ongoing debate about why dolphins jump out of the water. Scientists think about different reasons for this behavior.Among them, some think that dolphins jump while traveling to save energy as going through the air consume less energy than going through the water.Some other think that jumping is to get a better view of distant things, mainly food. So, in this way, dolphins jump to locate food or food related activity like seagulls eating or pelicans hunting.Other explanation suggest that dolphins use jumping to communicate either with a mate or with another pod.Some people even think that dolphins jump for cleaning, trying to get rid of parasites while jumping.Finally some scientists think that they are only having good fun, as playing helps to keep senses at their best.http://www.dolphins-world.com/why-do-dolphins-jump-out-of-the-water/
The idea that this double flip "saves energy" is idiotic. The other ideas are possible. But I think it's likely that all sufficiently intelligent life forms do stuff "just for fun". There are plenty of good biological reasons for this, I think.#biology