Many animals have evolved to tolerate extreme environments, including being able to survive crushing pressures of ocean trenches, unforgiving heat of deserts, and limited oxygen high in the mountains.

Special 'antifreeze' proteins in the blood of several Antarctic fish species bind to ice crystals and prevent the creatures from freezing. A new study finds that the proteins also allow the internal ...

Researchers reporting in the journal Current Biology on January 13 have discovered a massive breeding colony of notothenioid icefish in Antarctica's southern Weddell Sea. They estimate that the colony ...

Antarctic notothenioid fishes inhabit the Southern Ocean at sub-zero temperatures and experience one of the highest dissolved oxygen concentrations of any marine habitat. While this environment ...