Annenberg Foundation
Annenberg Learner: Journey North: Facts About Earthworms
A comprehensive resource on earthworms, offering the following sections: "Facts about Earthworms," "Migration and Annual Cycle," and "Lessons Activities and Information."
Scientific American
Scientific American: How Geckos Get a Grip
This article, published by Scientific American (August 27, 2002), explores the latest findings on how geckos cling to surfaces. These findings seem to indicate that small hairs (or setae) in combination with water-based forces allow...
Scientific American
Scientific American: The Intricacies of a Gecko's Grip
This article, published by Scientific American (June 19, 2000), explores how geckos hang on vertical surfaces. They don't use glue, or suction, or even nature's version of Velcro. Instead, they utilize intermolecular forces "to get a...