Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Using probes originally designed to detect and image topographical features on surfaces, scientists at the U.S. Department of Energy's Brookhaven National Laboratory have demonstrated the ability to ...

A pair of spiny lobsters locks antennae as they battle on the gravel-strewn bottom of an aquarium. The two grapple, grabbing legs and jousting with their long spines. Their aggressive actions extend ...