标签：大堡礁 相关文章
Some are little more than rocks, others substantial mountains, covered in woodland. The first British person to see that was captain Cook, who stood here in 1770, and for the first time, realized the scale of the Great Barrier Reef. He also realized
自然百科2014年
Aboriginal people would have lived here too. Hunting the wildlife in areas that are now deep underwater. Then the end of last ice age, ice of the poles melted and sea levels rose all around the round flooding this lowline coast. This happened nearly
自然百科2014年
Imagine all this activity, this constant even flow of life continuing for over 2,000 kilometers. It's hard to believe that such a hugh solid structure hasn't always been here. But compared with the rest of Australia, this reef is very young. -20,000
自然百科2014年
They respond to touch, temperature, currents, and the cycles of the sun and the moon. And their tiny movements combined to give each colony a rhythm of its own.The polyps can't build the reef alone. For this, they need parterners that are even smalle
自然百科2014年
Because of their sophisticated senses and remarkable physique, white tips are great reef hunters. At night, they turn it into an art form, better than all other sharks. We expect sharks to be hunters, but after dark, the reef itself becomes one giant
自然百科2014年
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
自然百科2014年
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
自然百科2014年
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
自然百科2014年
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
自然百科2014年
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
自然百科2014年
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
自然百科2014年
The Great Barrier Reef is the largest coral reef on our planet.It's one of the seven recognized wonders of the natural world. The Reef itself is the place that most people explore, but there is much much more. The coral Reef is actually a very small
自然百科2014年
A baby G,only a centimeter in length,that will one day grow into a giant,over 2 meters long.Most reef animals have tiny babies like these,carried at the mercy of the currents.Many have some ability to direct themselves and even the young corals can s
自然百科2014年
A pair of noddy terns fly close together,over the island on the reef.They are two mates, reaffirming their bond. Noddies signal to each other continually during courtship,both in the air and after landing.Once in the trees,the performance changes.The
自然百科2014年
This habitat into connect under all of vital to the well being of the Great Barrier Reef. This is the little known story of one of the most complex and spectacular Eco-systems on earth. The Great Barrier Reef is over 2,000 kilometers long which means
自然百科2014年
All of this food makes the mangrove a great place for fish. Small residents as well as youngsters that will one day move out to the barrier reef. Reef species like these rabbit fish may look big, but they are still only 1/3 of their adult size. These
自然百科2014年
This creature is much more than a passive drifter. It can move as fast as an Olympic swimmer. And it has 24 eyes, each complete with a lens that can form a detailed image. It uses its tentacles like a trawl net. When a fish makes a contact, thousands
自然百科2014年
These huge tracks of rainforest close to the Queensland coast are essential because they regulate the flow of water and the sediment it contains. Thats important, because theres an awful lot of water here. Hot humid tropical air gives rise to vast am
自然百科2014年
These footprints belong to one of the biggest land animals in Australia, the cassowary, a flightless bird that's almost as tall as a person. Its cloth wouldn't look at a place on a dinosaur. And its kick is so violent that the cassowary is said to be
自然百科2014年
But there are now less than 2,000 living here, and they are becoming rarer all the time.-Before European settlers arrived, much of the coast here was covered in forest. And a lot of that was jungle just like this. This is a vibrant ecosystem in its o
自然百科2014年