The idea is to teach cattle self-defence, or rather to
breed
the instinct into them. The cows that graze in los
llanos
are mostly
Zebu
, which are popular with ranchers for their fast growth, large size and white hides. But they have an unfortunate habit of fleeing in all directions when danger approaches. Panthera’s idea is to replace
panicky
Zebu with cattle that stand their ground, or to interbreed the two. Esteban Payán, who directs Panthera’s operations in northern South America, chose San Martineros, a little-known subspecies of Criollo cattle descended from Spanish fighting bulls. Few jaguars dare to challenge a massed group of 500kg (1,100-pound) San Martineros, their horns levelled.
Docile
with humans, they are fierce defenders of territory and their young. Mr Payán recounts that San Martineros chased away a puma before it could eat a
capybara
it had killed in their
paddock
.
这个点子就是教会牛去自卫,要不就给它们培养这样的本能。在拉美大草原上放牧的大多数都是瘤牛,它们由于成长快、体型大、毛皮白,很受牧场主欢迎。但是它们有一个坏习惯:当危险来临时,这些瘤牛会四散而逃。潘瑟拉的想法是把容易受惊的瘤牛换成坚守阵地的品种,或者把二者杂交。埃斯特班·巴杨管理潘瑟拉在南美洲北部的运营,他选择了圣马尔蒂内若斯牛,它是克里奥罗牛的一支鲜为人知的亚种,而克里奥罗牛是西班牙斗牛的后代。少有美洲豹敢于招惹一大群五百公斤(约一千一百磅)、双角水平的圣马尔蒂内若斯牛。它们驯服于人,却会凶狠地保卫自己的领地及幼犊。巴杨讲述道,有一次,圣马尔蒂内若斯牛撵跑了一只美洲狮,而它刚在围场里捕杀了一只水豚还没来得及吃。