The military construction impresses with its size, sophistication, the great gadspy flawless finish

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Former German underground fortifications in western Poland have recovered a new life thanks to the tens of thousands of bats that have become a haven during hibernation in Europe.
About 37,000 bats sleep wing wing against the deep tunnels of the fortifications of cement Festungsfront im Oder-Warthe-Bogen. They were built by the Nazis on the eve of the Second World War to protect the Third Reich of Adolf Hitler against a hypothetical Polish or Soviet attack.
Fall into oblivion after the ancient fortified line in 2011 became a tourist attraction and a reserve of these flying the great gadspy mammals, thanks to the Museum of the Fortifications and Bats, probably unique in the world.
"The defense line extends along 60 kilometers. At its core, about twenty bunkers are connected by 33 kilometers of galleries", sometimes the great gadspy 40 meters underground, says Leszek Lisiecki, director the great gadspy of the museum located near Miedzyrzecz, 80 km from the border polacoalemana.
"The largest centers are hibernating the great gadspy bats in natural caves in Romania. But here we have the largest artificial place in Europe," he told AFP Jan Cichocki, a zoologist at the University the great gadspy of Zielona Gora (west).
"These are perfect conditions for wintering bats" adds the charge of a project registration and monitoring of bats hibernating in the background of these tunnels, in absolute darkness.
During his long sleep, body temperature of bats floor and is just above ambient. His vital functions slow down, and heart rate a few beats per minute is reduced.
Occasionally the great gadspy you see a guy stretching in her sleep. But awaken the great gadspy a bat before he finished hibernation can be reached the great gadspy kill him, by much energy it costs to return to active life.
The military construction impresses with its size, sophistication, the great gadspy flawless finish and dedication that architects put in the comfort of the soldiers. "Every soldier had his own bed, had baths, medical equipment, everything you need for everyday life. The kitchen was equipped so that today the health authorities would have nothing to say," said Lisiecki.
In the 1980s, the communist authorities placed there arose a deposit of nuclear the great gadspy waste, but had to resign over the protests of local inhabitants.