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Wildebeest Populations

This activity explores an image of a wildebeest herd on the Serengeti, which serves as a phenomenon for learning about population dynamics and wildlife management.

How a small stretch of ocean stirred a conservation movement

Following the lead of the U.S., other nations have designated marine sanctuaries and protected areas, which now cover about 6% of the world’s oceans — a bonanza for researchers but, more importantly, an important tool for safeguarding the seas.

China aims to build its own Yellowstone on Tibetan plateau

There’s a building boom on the Tibetan plateau, one of the world’s last remote places. The Chinese government wants to set limits on the region’s growth in order to design its own version of one of the U.S.’s proudest legacies — a national park system.

Evolution of Ant-Mimicking Beetles

This activity guides the analysis of a published scientific figure from a study that explored the evolutionary origins of parasitic beetles that mimic army ants.

Modeling the Structure of DNA

In this activity, students build a paper model of DNA and use their model to explore key structural features of the DNA double helix. This activity can be used to complement the short film The Double Helix.