The speed of cheetahs is incredible, yet they are among the most vulnerable predators of the savannah. Indeed, their racing requires such an effort that they always risk a fatal overheating, their internal temperature exceeding 104°F (40°C) in full speed. Once their preys are captured, they cannot eat them immediately because they have to rest and catch their breath. In such a state of fatigue, they are unable to defend their preys against stronger predators (lions, panthers, hyenas ...) to whom they often abandon the product of their hunt.