Tune in and get turned on to the world of tiger beetles! Dr. Biology chats with biologist David Pearson about these colorful sprinters that are not only fun to watch but also important “bioindicators” that help scientists understand the health of habitats. You’ll discover how tiger beetles inspire new designs through biomimicry, and why these tiny speedsters now have their very own celebration—World Tiger Beetle Day, November 11.

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Why do peanuts, pollen, or pet dander make some of us sneeze or swell up—but not others? In this episode, Dr. Biology talks with immunologist Esther Borges Florsheim from Arizona State University to explore how allergies start, why they’re becoming more common, and what’s really going on when your immune system sounds the alarm.

From sniffles to “no peanuts, please,” get ready to learn how your body protects you—and sometimes overreacts—in surprising ways!

Read more: Toxic Response
Immune system comic book: Viral Attack
Read more: PLOSable science stories

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Coral reefs may look like colorful rocks, but they’re actually animals living in partnership with tiny plant cells. This remarkable symbiosis powers entire ocean ecosystems. In this episode, Dr. Biology chats with Professor Liza Roger, whose Arizona State University lab is home to corals, sea anemones, and even upside-down jellyfish. Together, they uncover the secrets of coral “superpowers,” the causes of bleaching, and how nanoscale medicines might help reefs fight stress. From the desert to the ocean, Roger’s research reveals creative ways to give corals a checkup—and maybe even a healthier future.

Learn more: Coral bleaching video

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