Seeing as how the Earth is two thirds covered in water, it only makes sense there would be an episode like this. I was in no way expecting that to happen with the shark. Then again, I wasn't expecting really anything that happened in this. I especially like the duck egg. Well, not literally a duck egg.
It's weird how these guys can just change species. Wait, what species of egg were they laid to begin with? The sounds are once again, very cute. It's great to see them move differently, being in the water. It shows good variance.