Extremophiles

Extremophiles are organisms which live and survive in some of the most inhospitable conditions on Earth, and sometimes even further such as nearly boiling water that's so acidic it eats through metal, or residing in a muddy, oxygenless soup far saltier than any ocean.

These hardy creatures are remarkable not only because of the environments in which they live, but also because many of them couldn't survive in supposedly normal, moderate environments.

Certain bacteria can live in hot springs or around deep-sea hydrothermal vents, where the water can be very hot. Certain plants grow well in salt marshes where the salt concentration is too high for most plants