Neither more nor less

If you are a squirrel you just spread your belly out over a smooth cool surface like a tree limb above and transfer that excess heat to the tree . Squirrels are not as capable of controlling their body temperature as are most other mammals : they can easily over-heat in hot weather or die of cold in extreme cold weather . It is a common sight in the summer to see squirrels spread-out on all manner of cool surfaces . Squirrels also build flat open platforms assembled from green tree leaves placed in the lower branches of trees where it is coolest to provide for a necessary cool retreat in the hot summer months .