Squirrels across Georgia are busy building leaf nests this month — a seasonal behavior that helps them survive the colder nights.

If anyone has either trees in their yards, or if you have a bird feeder, you are familiar with squirrels. These acrobats, pests, robbers and property-damagers are present all over Ohio. They are so ...

Behavioral Ecology and Sociobiology, Vol. 75, No. 6 (June 2021), pp. 1-15 (15 pages) Acoustic signals are one of the reproductive isolation mechanisms that can be a driving force for speciation.