Male lions axe rather reserved about expending their energy in hunting. More than three quarters of kills are made by lionesses. Setting off【C1】______dusk on a hunt, the lionesses are in【C2】______, tensely scanning ahead, the young lions fall playfully behind, and the【C3】______bring up the rear, walking slowly, their massive【C4】______nodding with each step as ff they【C5】______with the whole matter. But【C6】______may have survival value.【C7】______lionesses busy hunting, the males【C8】______as guards for the young ,【C9】______them particularly from hyenas (袋狼). Hunting lionesses have learnt to【C10】______their environment. Darkness【C11】______them with cover, and at dusk they【C12】______wait near animals they want to kill【C13】______their outlines blend into the surroundings. Small prey(猎物)present lions with no【C14】______. They are simply grabbed with the paws. A【C15】______technique is used with【C16】______animals, such as wildebeest (角马). Usually a lioness pulls her prey down【C17】______running up behind【C18】______, and then seizes it【C19】______the throat. Or she may place her mouth over the muzzle (动物之鼻口) of a drowned animal,【C20】______it. 【C1】