SCIENCE Until recently, it was widely thought that the first humans arrived in North America via a land bridge between what is now Russia and Alaska. Now, anthropologists think America’s earliest humans didn’t arrive by land at all. (Science) Why did humans migrate to the Americas? Use our activity to explore ancient push-pull factors. Teachers, scroll down for a quick list of key resources in … Continue reading Did the First Americans Take a Ride on the Kelp Highway?
ENVIRONMENT Warmer air and water temperatures, combined with overseas tropical storms, delivered an ecologically desirable but olfactory disagreeable gift to the shores of Laguna Beach, California, this summer—copious amounts of kelp. (Los Angeles Times) Use our resources to see how kelp holds fast. Teachers: Scroll all the way down for a short list of key resources in our “Teachers’ Toolkit.” Discussion Ideas Laguna Beach, California, … Continue reading Kelp Has Arrived . . . and It’s Raising a Stink