Giraffe pelvis, though relatively short, has an ilium that is outspread at the upper ends. A giraffe has only two gaits: walking and galloping. Walking is done by moving the legs on one side of the body at the same time, then doing the same on the other side. When galloping, the hind legs move around the front legs before the latter move forward, and the tail will curl up. The animal relies on the forward and backward motions of its head and neck to maintain balance and the counter momentum while galloping. The giraffe can reach a sprint speed of
Reticulated giraffe Rothschild's giraffe or reticulated giraffe herds. The San Diego Zoo Safari Park, Bronx Zoo, and Chester Zoo have herds of just Rothschild's giraffe. Cheyenne Mountain Zoo, Busch Gardens Tampa, The Maryland Zoo, and Omaha's Henry Doorly Zoo all have strictly reticulated giraffe herds. However, some zoos still breed Rothschild's giraffe and reticulated giraffes. At Utah's Hogle Zoo, their giraffe herd consists of male Riley, a reticulated giraffe, and females Kipenzi, a reticulated giraffe, and Pogo, a Rothschild's giraffe. In early 2016, Willow was born to Riley and Pogo. According to the new research discovered in 2016, Willow would be a