Or the happiest animal in the world?
At the Prospect Park Zoo in Brooklyn, there's a very special turtle.
JUrquhart / BuzzFeed
It's called a mata mata and it's very happy.
JUrquhart / BuzzFeed
But it's not just this one turtle in Brooklyn that's happy...
Néstor Lucas Martínez / CC BY-NC-SA 2.0 / Via Flickr: nlm-fotos
...all mata mata turtles are happy.
Joachim S. Müller / CC BY-NC-SA 2.0 / Via Flickr: joachim_s_mueller
