Deep sea vents are not dependant on the photosyntheic carbon cycle. https://en.w...

		Balgair on June 12, 2019 \| parent \| context \| favorite \| on: New study dramatically narrows the search for adva... Deep sea vents are not dependant on the photosyntheic carbon cycle. https://en.wikipedia.org/wiki/Hydrothermal_vent#The_Deep_Hot... Other extremophiles and archea exist and have been observed in deep caves and rocks. Life really does find a way!

Fascinating! The source of carbon can still be carbon dioxide, in addition to methane.