
Winter birds have adaptations that help them stay warm. Winter birds use fat and feathers as insulation. In early fall, birds eat extra food to add fat to their body.
Photo Credit: Arterra Picture Library/Alamy Stock Photo
Your breath is warm and moist. It has different gases. … read more
This is Arenal Volcano in Costa Rica. Look at the … read more
Dolphins live in groups called pods. Living in a pod … read more
© 2025 McGraw-Hill Education. All Rights Reserved.