纪录片《我们的地球》 第233期 偏远岛屿(04)(在线收听) |
The island of Komodo in Indonesia. Home to dragons. 这是印度尼西亚的科莫多岛。龙之巢穴。 Ten feet long and weighing an impressive 150 lbs, 体长三米,重达六十八公斤, these are the largest living lizards on the planet. 他们是地球上现存体型最大的蜥蜴。 It's unusual to find large predators on islands. 大型食肉动物在岛屿上并不常见。 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。 It might seem there wouldn't be enough food to support such giants on this relatively small island. 这么小的岛屿似乎不可能为这种庞然大物提供充足的食物来源。 But reptiles, being cold-blooded, 但冷血爬行动物只需要, 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。 A single meal will last a dragon a month. 巨蜥一餐可以支撑一个月。 They are so successful that their only serious competition comes from others of their own kind. 他们的生存之道如此成功,以至于唯一的天敌就是他们的同类。 |
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