CNN Anderson Cooper 360 March 10, 2015 00:30:00
Freezing temperatures in the upper 20s, with no food or water. >> it's amazing. children are very resilient. i think sometimes we don't realize how much they can withstand. >> reporter: as for the temperature, being cold might actually have helped lilly. >> when you become hypothermic, it slows the body down. metabolism drops. your oxygen consumption drops, your glucose metabolism drops. >> reporter: the main reason she survived this awful crash is that her mother buckled her up in a car seat so she didn't go through a window or drown. something that isn't surprising to jennifer's sister. >> s...