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In this activity, students use an interactive tool to simulate how scientists collected and used sample data to estimate elephant population sizes.

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

In this Click & Learn, students explore mathematical models that describe how populations change over time and apply these models to the invasive lionfish population in the Bahamas. They also use data from other species to learn how density-dependent factors limit population size.

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 simulation allows students to explore two classic mathematical models that describe how populations change over time: the exponential and logistic growth models.

This interactive module explores biomes, climate, biodiversity, and human impacts around the globe and at different times.

This interactive module explores methods used to survey large animal populations, and what they have revealed about the current state of the African elephant population.

This interactive timeline explores the history of Gorongosa National Park in Mozambique.

This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis.

This interactive, modular lab explores how stickleback fish and fossil specimens are used to study evolutionary processes, with an emphasis on data collection and analysis.

This tutorial describes the symbiosis between the Hawaiian bobtail squid and bioluminescent bacteria.