The Field’s collection of a Chicago-area rodent is showing just how fast animals can evolve to co-exist with humans.

Urban wildlife is evolving right under our noses — and scientists have the skulls to prove it. By examining over a century’s ...

You may know them as Alvin’s little friends who love to sing in the movie Alvin and the Chipmunks, but in reality, chipmunks really love to chirp and use their harmony to communicate with each other.

Urbanization has had visible morphological effects on chipmunks and voles in the Chicago metro area. While both chipmunks and ...

NEW MEXICO (KRQE) — A chipmunk found only in New Mexico was listed as endangered in December of last year. The Peñasco Least Chipmunk is one of 17 subspecies of Least Chipmunks. Their only kno… ...

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I began to see patterns in her movements and it seemed inevitable that I would have to think up a name for her. At one point, “Roughhouse Rosie” crossed my mind, and the moniker stuck. Whenever she ...