This animation illustrates the main stages of the water cycle in Gorongosa National Park, an ecosystem that experiences both wet and dry seasons.

This activity allows students to use authentic scientific data to make claims about the threat of coral bleaching for reefs around the world.

In this talk, marine biologist Stephen Palumbi compares threats to biodiversity in the ocean to threats on land.

In this talk, biologist Anthony Barnosky discusses what steps can be taken to avoid a sixth mass extinction.

This interactive module explores key human impacts on the environment and how they have affected Earth’s landscape, ocean, atmosphere, and biodiversity.

This animation shows how the protein MECP2 helps switch off gene expression.

This animation shows how X chromosomes are randomly switched off in most female mammals.