There are many endurings mysteries about the great barrier reef,particularly at night,but this is one of the more enchanting ones.Watch this.This coral is fluorescing under ultraviolet light,it's this amazing light show,and it covers pretty much the

发表于:2019-01-22 / 阅读(137) / 评论(0)

自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—26

At night, the corals don't just hunt. When territory is at stake, whole colonies go to war with one another. Once a coral senses another is too close, it launches a barrage of stinging cells, and the enemy returns fire. It's a war of numbers, the cor

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自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—24

Their snake-like bodies can even wriggle into crevices. And they can fold their dorsal fin flat to squeeze through small holes. If discovered, a sleeping parrotfish wouldn't stand a chance. Once the first shock has caught its prey, the smell and comm

发表于:2019-01-22 / 阅读(169) / 评论(0)

自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—23

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自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—22

The snail appears to release chemicals that paralyse its victim. The goatfish seems powerless to escape as it's swallowed alive. Moments later, a venomous barb inside the snail puts the fish out of its misery. In a place where even seashells are dead

发表于:2019-01-22 / 阅读(149) / 评论(0)

自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—21

The day shift is still here of course, it's just hidden. But it's difficult to find somewhere big enough to hide if you are the size of a turtle. -This green turtle is found in self a little litchi, and it is tucking it for the evening. Hello, big fe

发表于:2019-01-22 / 阅读(129) / 评论(0)

自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—20

A coral reef during the day is a very different place from a coral reef at night. The atmosphere changes completely. The day shift has logged off, and the night shift has gone to work. It's mean and moody, and the animals here mean business. Just as

发表于:2019-01-22 / 阅读(109) / 评论(0)

自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—18

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自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—17

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自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—16

With the tropical sun beating down,the exposed flat is one of the most hostile environment on the reef.for a fish caught out here,it should mean certain death.But not for this one.It's an epaulette shark,it can't breath out of water,but it survives h

发表于:2019-01-22 / 阅读(121) / 评论(0)

自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—15

During the lowest tides,the water runs off and whole sections of living coral are normally beyond the water,are exposed. The level of water on the reef top decreases dramatically,getting ever shallower,and going from a stable environment,to ever chan

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自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—14

It is also the largest green turtle breeding ground in the world. Having mated ashore, thousands of females pull themselves up the beach to lay their eggs. The record is 26,000 turtles in a single night. They turn a remote desert island into a clowde

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自然百科2014年

英语听力：自然百科大堡礁：自然奇迹—13

Some come and go in a matter of days. Others build and grow and can last for years. As plants take root and protect them from the elements. -The first glance of my seen that zone cave that pretty in hospit of the environment, but actually can support

发表于:2019-01-22 / 阅读(141) / 评论(0)

自然百科2014年

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annular atrophic plaque of the skin

arithmetic base and scale conversion