Continue tracking mythic creatures through the art they've inspired and the science they've helped shape with this collection of related Web sites.
After having students conduct a simple solar energy experiment, challenge them to build a better water heater with this classroom competition.
Explore your ancestral past and the 22nd-century possibilities of DNA research with this collection of kid-friendly titles selected for the Hall of Human Origins.
What are evolutionary trees? How do hominids differ from primates? And why is it important that humans are capable of symbolic thought? Find out with this guide from "DNA" to "variation."