
Mammals use moisture to cool off when they are hot. Cats lick themselves. Dogs pant. Some animals spit on themselves. Echidnas blow snot bubbles to cool off!
Photo Credit: Getty Images/Flickr RF/Arianna Palazzi
This map shows a day when the air quality was … read more
People do not live in Antarctica. People do stay there … read more
There are 30 major league baseball stadiums today. People call … read more
© 2025 McGraw-Hill Education. All Rights Reserved.