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Extremophiles are organisms that live in very extreme environments and can survive conditions that would kill most other organisms. The extreme conditions can include:

  • high temperatures
  • high concentrations of salt in water
  • high pressures.

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. For example, samphire looks a bit like a dandelion but can grow close to the sea shore.

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