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Discovered only 30 years ago,
人们在30年前发现
Fiji's largest surviving reptile was marooned on a handful of its outer islands.
斐济最大的爬行类幸存者被困在少数外岛上
Crested iguanas. They're one of the toughest and most saltwater-tolerant lizards around.
这是斐济冠鬣蜥。它们是最坚韧、最耐盐水的蜥蜴
In the breeding season, males, nearly a metre long, battle it out for a mate.
在繁殖季节中，近1米长的雄性为了抢夺配偶而奋斗
They begin with a gentle bout of competitive head-bobbing.
开始它们温和地摆动头部
If no-one backs down, things become more animated.
如果双方都不后退，决斗就不可避免
The loser scrambles for cover. So where did these large lizards come from?
失败者迅速逃到树顶。那么这些大蜥蜴是从哪里来的?
Some speculate Asia, 4,000 miles to the west.
有人猜测这些巨型蜥蜴来自6000公里以西的亚洲
Others, the Americas, 5,000 miles to the east.
也有人认为，它们是来自8000公里以东的美洲
But how did they end up here in Fiji?
然而它们是如何最终抵达斐济的呢
One answer is that the iguanas, the frogs and the millipedes were all carried here by powerful oceanic forces.
其中一个答案是，鬣蜥，蛙和千足虫都是被强大的海洋力量带来这里。
