Flash-Frozen Mammoths provide some of the best evidence of previous pole shifts, as the carcasses are found very well preserved - which means they were frozen fast, with no time to decompose after death - yet the mammoths are generally fat and healthy, with newborn young, and often with unchewed and undigested warm-climate vegetation in their mouths and stomachs - indicating a very sudden interruption of warm climate conditions in which they were eating about 500 pounds of vegetation per day right up until the moment they were suddenly frozen to death.