Howard Hughes Medical Institute
Got Lactase? The Co-Evolution of Genes and Culture
Does the human body evolve as quickly as human culture? With a stellar 15-minute video, explore the trait of lactose intolerance. Only about 1/3 of human adults seem to still have the enzyme lactase and therefore, the ability to digest...
Bully Free Systems
Bully Free Lesson Plans—Ninth Grade
"Bullying and Prejudice" and "Do You Cyber Bully," two lessons from a complete Bully Free program, serve as samples of the approach used in a unit designed to bring awareness to and to combat bullying. Each lesson asks class...