"The fox's sharp snout doesn't significantly compress the ... In the study, the authors scanned skulls of red and arctic foxes (from the Canidae family) and lynx and puma skulls (from the Felidae ...

an elongated snout; and a long, white-tipped tail. They’re typically smaller than lowland red fox subspecies, with males weighing up to 9.2 pounds and measuring up to 3.4 feet long and females up to 7 ...

with smaller snouts and more rounded ears. Both red and gray foxes live in North America, and their ranges overlap to cover most of the U.S. The red fox’s range extends north into most of Canada ...