Can/do hyenas live in freezing or cold environments?

During prehistoric times, the Ice Age, which was known to be a far more freezing periode than modern times, witnessed the uprising of many awesome predators, including the cave hyena or the Ice Age spotted hyena (see above). read more

“And we actually know from other experiments we’ve done that these microbes can metabolize and actually create new DNA under frozen conditions.” Research has shown that microbes can continue metabolic activity in ice even at subfreezing temperatures of -40 o C and below. read more

They live in shallow waters above continental shelves surviving on a diet of shrimps, crabs, mollusks and soft corals. Walruses have a massive blubbery body which keeps it warm and cozy in the frigid Arctic waters where temperatures go down below zero degree. read more

Even the coldest water (-2°C) doesn't result in death meaning that these animals can live indefinitely in cold water without suffering from hypothermia. Their skin surface temperature is nearly identical to the surrounding water, though at a depth of around 50mm beneath the skin, the temperature is the same as their core temperature. read more

But painted turtle hatchlings that live in cold climates remain in the nest for the winter, where temperatures can still dip below freezing. The young turtles are able to survive, with blood that can supercool, preventing ice crystals from forming even below their blood's freezing point. read more