The cheetah is the least catlike and aggressive of the big cats; the weakest of the group, it often loses its kills to lions, hyenas and even vultures. When hunting (around dawn and late afternoon), cheetahs spend a lot of time moving into position before bursting from cover and running down their prey in brief bursts of speed of up to 112 kph (sustainable for only 200-300 meters at a time). Unlike the other big cats, cheetahs never climb trees but prefer termite mounds, leaning trees or even vehicles as observation posts.