"Predators are exceptionally aware of tourists and their vehicles and sometimes use them to their advantage. If a cheetah has made a kill, it will almost certainly lose it if vehicles are present, since other predators, particularly the hyena, lion or jackal are alerted by the tourists. If the cheetah has cubs, that is a very dangerous situation for them, as they are made more vulnerable by the interference of the vehicles. Research conducted in the recorded that nearly 30% of cheetah sightings had more thant 20 vehicles surrounding it, and of these, more than 50% were less than 30 yards from the animal ..."