the cave hibernating bats

According to Britain's Daily Mail reported that at first glance the stone walls of this cave is a bit strange, like Muddy mud or thick mold. But watch carefully but found that hundreds of thousands of hibernating bats.

U.S. photographer Stephen - Alvarez found a large number of bats hibernating in a cave in Tennessee, they like a bearskin hanging on the rock walls.
These spectacular photographs taken by American photographer Stephen - Alvarez (Stephen Alvarez), caves and wildlife photos of the "Times" and "National Geographic magazine shoot.
-Although this cave there are a surprising number of bats, Alvarez explained that the bat species are at risk of extinction, has now been confirmed that a fungus has killed millions of bats.
It is reported that Alvarez colleagues calling to enter the cave to calculate the number of hibernating bats in the north and southeast of the United States hundreds of millions of bats seek refuge in the harsh winter habitat, these size small animals are usually up to four month hibernation habitats in caves together are rarely found.
Alvarez said he and other colleagues in the cave exploration must very carefully examine every hole to avoid the bats awakened from hibernation. He stressed that we spent about three weeks time to take pictures of the various bat cave. At first, we in the U.S. state of Tennessee began to search, north search the cave. There are nearly 500,000 bats inhabit the cave, so be very careful to avoid wake them.
So that this witness was shocked, there are a large number of bats, they look like hanging bearskin cave rock walls, but in fact hundreds of thousands of hibernating bats. We must as far as possible faster to calculate their numbers.
Our presence does not scare off the bat if the hundreds of thousands of bats suddenly take off, people will be frightened. Alvarez explained that the bats woke up from hibernation can not survive in this harsh environment, they will try to avoid them.
Alvarez for shooting underground cave with a wealth of experience, but he said that this is a special shot, I rarely enter the cave to shoot the animal, usually into the cave to shoot a spectacular and beautiful Falls, so this is a very special experience!
Alvarez shot these photos with the bat international protection and the Nature Conservancy experts in the field to explore this field research designed to calculate the number of bats in each cave in order to assess the residual number of endangerment or extinction of bats, them in the current threat of a rare disease.
Along with the "ferret syndrome", the the bat rapid decline in the number of, so far, a fungus that causes the death of more than 550 million bats.
Alvarez said: "by this particular disease, the bat has drastically declined, when they leave hibernation location, were unable to find food and water, most of them died in the cold winter."
Survived a few bats often wings by fungal infections, the second year, they can not fly to find food. The expedition arrived in the majority of the bat cave, bat mortality rate of 90%.
Alvarez said that the number of hibernating bats exited the cave, and will eventually die in the snow. This is an important field investigation activities, sometimes I look forward to more time to conduct an investigation, and probably will not again have the opportunity of photographing these spectacular bat cave.

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