1. That time a hiker survived for 24 days on a mountainside in Japan by "hibernating".
Mitsutaka Uchikoshi was hiking with friends on Mount Rokkō in western Japan in October 2006 when he decided to walk back down the mountain alone, instead of taking a cable car with the others.
He slipped in a stream and fell, breaking his pelvis. He was found 24 days later by a passing hiker. His body temperature had fallen to 22ºC and he'd suffered blood loss and organ failure.
He was taken to hospital, and amazingly made a full recovery. The BBC reported at the time that a doctor who treated him said that "he fell into a hypothermic state at a very early stage, which is similar to hibernation."
"I lay down ... in a grassy area, which felt good in the sunshine, and eventually I fell asleep," Uchikoshi said of his accident when he spoke at a news conference after his recovery. "That's the last thing I remember."