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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 web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements.

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

This interactive module consists of a virtual Winogradsky column, which can be used to explore the diversity of microbes, microbial metabolic strategies, and geochemical gradients found in sediments.

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.

This interactive simulation allows students to graph and analyze sample distributions taken from a normally distributed population.

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.

Several questions are embedded within the short film The Making of the Fittest: Natural Selection and Adaptation, which uses the rock pocket mouse as a living example of natural selection.

This tutorial describes the structure and function of the cancer-causing protein BCR-ABL. It also shows how drugs targeting this protein can help treat chronic myeloid leukemia (CML), a cancer of the white blood cells.