For millennia, caves have served as shelters for prehistoric humans. Caves have also intrigued scholars from early Chinese naturalists to Charles Darwin. A cave ecologist has been in and out of these subterranean ecosystems, examining the unique life forms -- and unique living conditions --
Santa Cruz (California) [US], April 4 (ANI): According to a new study, atmospheric methane may be the first sign of life beyond Earth. It was detected by astronomers.