the rump and kill by a strangling bite to the throat. They also kill prey by enclosing its muzzle in their jaws. Male lions usually aim for the backs or hindquarters of rivals, rather than their necks. Lions typically consume prey at the location of the hunt but sometimes drag large prey into cover. They tend to squabble over kills, particularly the males. Cubs suffer most when food is scarce but otherwise all pride members eat their fill, including old and crippled lions, which can live on leftovers. Large kills are shared more widely among pride members. An adult lioness requires an average of about of meat per day while males require about . Lions gorge themselves and eat up to in one session. If it is unable to consume all of the kill, it rests for a few hours before continuing to eat. On hot days, the pride retreats to shade with one or two males standing guard. Lions defend their kills from scavengers such as vultures and hyenas. Lions scavenge on carrion when the opportunity arises, scavenging animals dead from natural causes such as disease or those that were killed by other predators. Scavenging lions keep a constant lookout for circling vultures, which indicate the death or distress of an animal. Most carrion on which both hyenas and lions feed upon are killed by hyenas rather than lions. Carrion is thought to provide a large part of lion diet. Predatory competition Lions and spotted hyenas occupy a similar ecological niche and compete for prey and carrion; a review of data across several studies indicates a dietary overlap of 58.6%. Lions typically ignore hyenas unless they are on a kill or are being harassed, while the latter tend to visibly react to the presence of lions with or without the presence of food. In the Ngorongoro crater, lions subsist largely on kills stolen from hyenas, causing them to increase their kill rate. In Botswana's Chobe National Park, the situation is reversed as hyenas there frequently challenge lions and steal their kills, obtaining food from 63% of all lion kills. When confronted on a kill, hyenas may either leave or wait patiently at a distance of until the lions have finished. Hyenas feed alongside lions and force them off a kill. The two species attack one another even when there is no food involved for no apparent reason. Lion predation