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Professor John Endler traveled to Trinidad in the 1970s to study wild guppies. In this activity, learners take part in an online simulation of Endler's work.

In this online simulation, learners can see adaptation and camouflage in action.

In this online activity, learners discover how random variation influences biological evolution.

In this activity (p.3-4 of PDF), learners learn about disease transmission and antibiotic resistance.

In this simulation game, learners play as predators equipped with genetically different “mouths” (utensils) and hunt for “prey” (assorted beans).

In this activity (p.5-6 of PDF), learners investigate natural selection. Learners discover that natural selection, which takes place over decades, can lead to altered populations within a species.