PHDID YOU KNOW? 
A Flamingo's head has to be upside down when it eats
Flamingos are known for standing in shallow water on one leg, but most people are unaware that due to the way in which they have developed a Flamingo has to use the bristles at the top of its beak to filter out the mud and water that gets sucked in along with its actual food.
It therefore has to eat with its heat upside down as otherwise it would be unable to filter its food properly.
(s)thepeteexpress