Persistent temperatures above 60 o F (16 o C) are not cool enough for
true hibernation.
True hibernation requires a constant temperature between 50o - 60 o F (10 o -16 o C).
True hibernation is an evolutionary response to freezing or near - freezing climates.
This means that stores of body fat will be used up, whereas in
true hibernation and even brumation, they would be barely touched.
In
a true hibernation, the body enters into an immobile state, very similar to a coma, where there's almost no muscle contraction and the body temperature sometimes lowers to almost freezing levels.
Not exact matches
Groundhogs are one of the few animals that achieve
true, or «profound,»
hibernation, burrowing down below the frost line for the coldest months of the year.