Having trouble finding illustrations, diagrams, and interactive activities to supplement biology lectures for your students? Want to provide a visual representation of the passage of blood through the human cardiovascular system–or have your students conduct an online experiment in cell division? “Biology in Motion” offers these and many other features. Based on the premise that the web provides an ideal vehicle for teaching biology, developers have assembled a collection of learning activities, animations, and cartoons designed to help explain difficult, but widely taught, biological concepts. Current topics range from evolution to energy storage, among others. Not sure how to get started? A helpful teacher’s section provides tips for how best to integrate the technology into existing lesson plans and offers pointers for making sure the videos and interactive activities can be viewed easily by students.