I'm sure all the animals that spend 24 hours a day, every day in the freezing sub zero temps are yawning at this.


your cells develop more mitochondria when exposed to cold for long period of time, no mystery.

those animals definitely don't live longer though, most wild animals live a lot, lot longer if they are kept in heated homes.

sounds like most wild animals will live sometimes 10 times as long if they are cared for by an owner, given warm place to sleep, medicine if they get sick, clean food and water.