Why does your brain sometimes react to a stressful meeting or traffic jam like you’re being hunted by a lion on the savannah? In this episode of Tiny Show and Tell Us, we explore the evolutionary roots of anxiety, why our internal alarm system sometimes misfires, and how treatments can help some people. Then paleontologist and author Riley Black joins the show to talk about her new book Tyrant Lizard Queen: The Love, Life, and Terror of Earth’s Greatest Carnivore. She shares why T. rex is a much more complicated dinosaur than the movie monster we’re used to seeing. We hear about how T. rex grew, hunted, weathered dramatic environmental changes, and fit into her ecosystem.

Related episodes you may enjoy:

• Decoding dinosaur colors and the failure of postpartum care: Tiny Show and Tell Us #57
• Treating Depression: Then versus now and the SSRI debate

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In this episode of Tiny Show and Tell Us, a listener asks why maternal mortality rates in countries like the U.S. and Canada have risen while many other wealthy nations have seen them plateau or even decrease. We talk about postpartum health, racial disparities, access to care, and why support after birth can be just as important as care during pregnancy and delivery. Then we switch gears and discuss how we know the colors of some dinosaurs. The answer lies in tiny fossilized structures called melanosomes, which allowed researchers to reconstruct some of the colors of dinosaurs.

Related episodes you may enjoy:

• The Mothers of Gynecology: The centuries that led to today’s Black maternal mortality crisis
• Dinosaur Fossils: Inspiring Jurassic Park and helping us predict Earth's future

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.