تماشای ویدئو New Discovery Blood Red Worms That Thrive in a Toxic Cave EXCLUSIVE VIDEO National Geographic از آی-ویدئو

June 3, 2016 - It's wet, muddy, slimy, and smells like rotten eggs: Sulfur Cave in Steamboat Springs, Colorado, is full of gases so toxic that a person who enters would pass out after just a few breaths. But that didn't stop David Steinmann of the Denver Museum of Nature
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