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Biodiversity Show and Tell: An Accessible Activity to Encourage Students to Explore the Tree of Life

An appreciation of organismal diversity is a requirement for understanding evolution and ecology, and can serve as a source of amazement and wonder that inspires students to enjoy biology. However, biodiversity can be a challenging subject to teach: it often turns into a procession of facts to memorize and a disorienting list of Latin names. To help engage students in this topic, we developed an activity in which each student contributes to a class "biodiversity tour" of strange and intriguing species. Students in our large-enrollment introductory biology course use the Internet to find a species that interests them and that they think will interest their peers. They research their species and complete a worksheet to report their findings. Then they meet in discussion sections of ~32 students (in person or online) where each student gives a brief presentation about their species using a slide they have prepared, producing a lively, crowd-sourced, rapid-fire nature documentary. The performance for their peers motivates students to find the strangest species possible. Students overwhelmingly reported that this activity taught them something new about life on Earth and increased their interest in our planet's species. Many students also reported that this activity caused them to talk to someone about biology outside of the class and increased their personal connection to the natural world, suggesting that it helped them see the relevance of biology to their everyday lives. This simple activity can enrich an introductory biology course of almost any size.

Primary image: Photos of some of the species chosen by students in Fall 2019.

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