There are over 58 million overweight cats and dogs in the United States alone. In this science project you will determine what percentage of the pets you know are overweight and how their weights compare to weight of pets throughout the...

Learn how the semi-aquatic fishing cat evolved millions of years ago to live in the wetlands of South and Southeast Asia in this video from NATURE: The Story of Cats (4:18). The accompanying activity prompts students to write an...

The story of how the Black Plague killed hundreds of millions during the Middle Ages, of how it spread, of attempts to cure it, of life during the Plague, the breakdown of society, religious interpretations, ethnic conflict, and a...

The World Wide Web is used every day by millions of people for everything from checking the weather to sharing cat videos. But what is it exactly? Twila Camp describes this interconnected information system as a virtual city that...