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Lammergeyers have colonized most of Africa's mountains wherever they find enough food to eat and enough wind to lift their massive frames. Here in Ethiopia conditions are perfect.

On the southern edge of these highlands towering spires give way to grassy moorlands, home to the rarest of all African predators-Ethiopian Wolves. Like their European ancestors, Ethiopian Wolves patrol vast territories and live in tight family groups. But otherwise they are quite different. Small and fine featured, they've given up chasing large animals in packs. There isn't the prey here to do that. Instead they hunt alone. These grassy moorlands teem with more than a dozen types of rodent. Ethiopian Wolves have evolved to become specialist rat catchers. Nimble legs, sensitive ears, and a narrow muzzle are the tools of their trade.

Small grass rats make up most of the wolves' diet. But on these mountain plateaus, there is a far greater prize- a rodent ten times bigger, ten times more nervous.

moorland n.   Land consisting of moors.   高沼地：由沼泽地构成的土地

rodent n.   Any of various mammals of the order Rodentia, such as a mouse, rat, squirrel, or beaver, characterized by large incisors adapted for gnawing or nibbling.

啮齿目动物：任一种有适于啃或咬的大前齿的啮齿目哺乳动物，如鼠、大家鼠、松鼠或狸
nimble adj.   Quick, light, or agile in movement or action; deft:

灵敏的，轻快的：动作或行动迅速、轻巧或灵敏的；灵巧的
muzzle n.    动物之鼻口

the giant mole rat.