Surprisingly for an aerial species, they have no wings whatsoever to aid them in flight. Instead, they possess a biological version of a ramjet engine - complete with a turbine of bone and gristle - which is capable of launching them up to speeds of 64 kilometers per hour (40 miles per hour). When at rest, they use three legs in a tripod arrangement, which otherwise fold up during flight. They have an internal phallus in between their two rear 'legs'.