 Some breeds, like boxers and pugs, as well as Persian cats, have short muzzles that make it harder to cool down by panting, so they can be even more vulnerable to the heat. If you suspect that your pet may be overheating, immediately seek emergency veterinary care. As the climate continues to warm, extreme heat will become much more common worldwide. But by taking a few precautions, pet owners can help keep their furry friends safe and happy all summer.