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Exploring Biomass Pyramids

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

Winogradsky Column: Microbial Ecology in a Bottle

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.

The Jaguar Is Made for the Age of Humans

A writer comes face-to-face with the cat deep in the Amazon jungle and left with a new understanding of its surprising resilience to poaching and habitat loss.

Population Dynamics

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

Science Says: Fast-melting Arctic sign of bad global warming

One of the coldest places on Earth is so hot it’s melting.

Glaciers, sea ice and a massive ice sheet in the Arctic are thawing from toasty air above and warm water below. The northern polar region is heating up twice as fast as the rest of the planet and that’s setting off alarm bel