Click Here to Read:  Bizarre life-forms found thriving in ancient rocks beneath the seafloor: Scientists broke open bits of oceanic crust and found them full of microbes—suggesting similar life could survive on other planets by Robin George Andrews on the National Geographic Website on April 2, 2020.
At East Diamante volcano (190 m, 623 ft depth), the chemosynthetic and photosynthetic communities overlap. Patches of encrusting red and green algae lie beneath filamentous bacterial mats on rock surfaces. The small white corals on the rocks are about 5 cm (2 in) long.  Public Domain via Wikimedia Commons.