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This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways.

This interactive module allows students to collect and analyze data from a virtual river to construct biomass and energy pyramids.

This interactive module explores niche partitioning, a mechanism that enables similar species of animals to coexist.

This interactive module connects to an online citizen science platform for identifying animals in photos collected by trail cameras in Darién and Soberanía National Parks in Panama.

This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem.

This interactive module allows students to investigate their own ecological questions using data collected by trail cameras in Gorongosa National Park in Mozambique.

A number of questions are embedded within the short film Popped Secret: The Mysterious Origin of Corn, which explores the genetic and archaeological evidence that corn was domesticated from a wild Mexican grass called teosinte.

This interactive module connects to an online citizen science platform for identifying animals in photos collected by trail cameras in Gorongosa National Park in Mozambique.

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

This tutorial describes how animals differ in their abilities to heal wounds and regenerate lost body parts or damaged tissues.

This tutorial explores how stem cells can be used to treat a wide range of diseases.