 With record heat and high humidity gripping much of the nation, pet owners are being encouraged to go easy on their animals. Megan Pittman is with the North Myrtle Beach Humane Society in South Carolina. If you're taking your dog for a walk, you want to do that first thing early morning or in the evening when it's a lot cooler out. Some 120 million Americans and their pets are under heat alerts across mid and deep south and the southeast and along the east coast from Georgia to Maine.