| Notable groups of Archaea include thermophiles and hyperthermophiles, halophiles, and methanogens. |
| For example, thermophiles are organisms that live under conditions of extreme high temperature. |
| Back on the boat, Craig told me a little more about his forays to collect thermophiles on the ocean floor. |
| Organisms that thrive in hot environments, known as thermophiles, would have fared better than anything that needed lower temperatures, says Sumner. |
| As described above, the molecular machinery of thermophiles works in ways we don't yet completely understand. |
| Psychrophiles, or organisms that live in extreme cold, were found, along with heat-loving thermophiles, which suggests the presence of hydrothermal vents deep in the lake. |
