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The expressive face muscles were found in two coyotes from Pennsylvania and one from Oregon, Courtney Sexton of the Virginia-Maryland College of Veterinary Medicine in Blacksburg, Va., and colleagues say.
But Palagi is convinced the open mouth is dedicated only to playful contexts: When the dolphins in her study were acting aggressively, her team didn’t see the animals performing this particular open-mouth behavior.
Lebanon is home to a diverse range of animal species, thanks to its varied landscapes that include mountains, forests, and coastal regions.
In 2013, PetSafe introduced its Simply Clean self-cleaning litter box, which featured a continuously rotating bowl that removes waste using a conveyor system.