英语听力：自然百科 海洋天堂大堡礁:堡礁内外—18

This is a known mindless killer. The shark is smart. It pitches up at the peak of the turtle nesting season, and simply waits for the tide to deliver its food.-Ah, look at that so distinctive...have the boat. Tigers are a big fan with all manner inte

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—20

It means the living can slip away for now, she'll not go far, she'll be back again up to 8 times during a single breeding season, to deposit up to 100 eggs on each visit, only then can she head back to her feeding grounds where who knows what will ha

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—21

A cyclone can be over 500kms across with a wind swirling around the eye of 300kms per hour.It was the most destructive force that great barrier reef must face.And in Feb,2011,this part of reef was hamered by the biggest storm in the living memory,cyc

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—23

This bleaching occurs because corals can only live in a narrow temperature range, healthy corals get their color from microscopic algae living in their tissues, these manufacture food for the corals by photosynthesis, but when the temperature rises j

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—10

Each one of her clutch of a hundred eggs is the size of a pingpang ball, the soft shell prevents them from breaking as they drop into the hole, when she is finished, she'll cover the nest and over the coming weeks, her eggs will incubate in the warm

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—6

It's the talk of Minke whales,one of the smallest of great whales.The turtle has swam from far away as islands in the south pacific.But the whale have travelled considerably further,all the way from Antactic.They come to Ribonwaves,south of Rain Isla

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—4

The birds have flown in from New Guinea and Japan to the north, Fiji to the east and even from the Asian mainland, thousands of kilometers away. In summer, Green Island is the most crowded destination on the Great Barrier Reef. It may look chaotic, b

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—3

-It's all exciting to see a large animal in the sea, and of course, the turtles are very iconic species in marine world. And I'm surrounded around this life. Hundreds and hundreds of turtles are in the water column above me, passing over the reef's c

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—1

The great barrier reef is huge, it stretches for over 2,000 kilometers along Australia's north east coast, so vast it's clearly visible from space, and it's not simply a collection of coral gardens, but a network of very different habitats, it means

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—11

It's been an absolutely exhausting night for any of the turtles you can see behind me, in fact you can actually make out this old girl here, she is absolutely shattered, she is completely spent, and she is just desperately trying to get back into the

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—14

And extremely cold, at 4 degrees, it's the same temperature as the sea in the Antarctic, the ROV reaches a depth of 800 meters, not quite at the bottom, but not far off, a pilot of coral sand at the base of the reef wall slopes gently into the abyss,

英语听力：自然百科 海洋天堂大堡礁:堡礁内外—15

But that pales into insignificance, when compared to the daily vertical migration of these mircoscopic animals called zooplankton. At sunset, all of these tiny creatures swin upwards, and under cover of darkness, they grease on floating algae close t