But reptiles, being cold-blooded, 但冷血爬行动物只需要

55. Yet, for four million years, the Komodo dragon has dominated here.
    然而 四百万年来 科莫多巨蜥一直称霸这里
56. It might seem there wouldn't be enough food
    这么小的岛屿似乎不可能
57. to support such giants on this relatively small island.
    为这种庞然大物提供充足的食物来源
58. But reptiles, being cold-blooded,
    但冷血爬行动物只需要
59. need only about a tenth of the food a carnivorous mammal would.
    肉食性哺乳动物十分之一的食物量
60. A single meal will last a dragon a month.
    巨蜥一餐可以支撑一个月
61. They're so successful, that their only serious competition
    他们的生存之道如此成功 以至于唯一的

来自《行星地球 第二季 第一集 Planet Earth S02E01 岛屿》第 58 行