To many climbers, mountaineers, and general fans of low oxygen environments, summiting Mount Everest represent the literal peak of physical achievement. But while an impressive feat for a human, it turns out vultures can happily survive exposed to altitudes of 40,000 ft or 12,200 meters above sea level and, indeed, have been seen flying around at this height. (For reference, this is about 11,000 ft or 3,350 meters above the peak of Everest.) Meanwhile tardigrades laugh in the face of the conditions on Everest, able to survive even nakedly exposed to outer space for quite some time with no ill effects. (Although, note: humans can actually survive exposed to the near vacuum of space for about 90 seconds without long term damage, but we have nothing on the tardigrade for durability in just about any environment.) And let's not even talk about microbes… In the end, there are creatures that can outdo even the best of humans at pretty much any physically intensive task we feel like setting our minds to, no matter how hard we train and how good our genetics.