That means pygmy hippopotamus.

Or bread roll. Take your pick.
A young pygmy hippopotamus at the Berlin Zoo is named Brötchen.
The newest addition to the Berlin pygmy hippopotamus family is named Brötchen. The Berlin Zoo announced this on Wednesday. “Naming animals after foods seems to be a popular internet trend right now,” explained zoo director Andreas Knieriem: “Strictly speaking, though, people in Berlin have known for decades that small, round snacks make excellent animal names: the female hippo Bulette was one of the absolute favorites at the Berlin Zoo until 2005.”