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.
Fish living in Arctic and Antarctic waters routinely face seawater temperatures near minus 1.9 degrees Celsius, cold enough ...
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 ...