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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 examine fossils of early humans and compare them to modern primates.

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

This model shows the skull of Tiktaalik, a vertebrate that existed about 375 million years ago and had features of both fish and tetrapods (four-limbed animals).

This model shows the skeleton of Tiktaalik, a vertebrate that existed about 375 million years ago and had features of both fish and tetrapods (four-limbed animals).

This model shows the pectoral fin bones of Tiktaalik, a vertebrate that existed about 375 million years ago and had features of both fish and tetrapods (four-limbed animals).

This model shows the pelvis of Tiktaalik, a vertebrate that existed about 375 million years ago and had features of both fish and tetrapods (four-limbed animals).

This model shows the humerus bone of Tiktaalik, a vertebrate that existed about 375 million years ago and had features of both fish and tetrapods (four-limbed animals).

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.