Before revision: Biology alt=Surreal blue pool surround by orange border on a purple ground.|upright=1.25|Hyperthermophiles produce some of the bright colors of Grand Prismatic Spring, Yellowstone National Park The specific coloursof geysers derive from the fact that despite the apparently harsh conditions, life is often found in them (and also in other hot habitats) in the form of thermophilic prokaryotes.
After revision: Biology alt=Surreal blue pool surround by orange border on a purple ground.|upright=1.25|Hyperthermophiles produce some of the bright colors of Grand Prismatic Spring, Yellowstone National Park Some geysers have specific colours, because despite the harsh conditions, life is often found in them (and also in other hot habitats) in the form of thermophilic prokaryotes.