A Hippopotamus at a zoo in Berlin is quite sex crazed. In fact, she has been put on the pill in order to prevent her from getting pregnant--for the 21st time!!

Bullette, as she is known to zoo-keepers, is 51-years-old. Due to her promiscuity and multiple pregnancies, worried veterinarians have prescribed contraception. They fear that since she has given birth so many times to so many calves, that another pregnancy could possibly kill her.

Despite her age, the aquatic animal still has a "voracious sexual appetite." She is currently being fed a pill the size of a tennis ball on a daily basis in order to prevent yet another pregnancy.