00:00There are caves on Earth where sunlight has never existed, and yet they are full of life.
00:07Deep underground, completely cut off from the outside world, are ecosystems that barely depend on the sun at all.
00:14Take Mobile Cave in Romania.
00:16It was sealed off for five and a half million years.
00:20No light gets in.
00:22No food gets in.
00:23The air is toxic, full of hydrogen sulfide and carbon dioxide.
00:28It should be dead.
00:30But it is not.
00:31At the bottom of the cave, the water is covered in a thick mat of bacteria.
00:36These bacteria do not use photosynthesis.
00:39They use chemosynthesis.
00:41They get their energy by breaking down chemicals like sulfur and methane.
00:45And everything else in the cave eats them.
00:47There are over 50 unique species found nowhere else on Earth.
00:52Blind spiders, translucent scorpions, leeches, and water scorpions, all living in complete darkness.
00:58No sun, no plants, just chemistry turning into life.
01:03It proves that life does not need sunlight.
01:06It just needs energy.
01:07It seems like a cool body.
01:07ان Gefampsio que cp303054886Qiw城.
01:08So it will end up in life forever.
