Popular Science answers your most outlandish, mind-burning questions—from the everyday things you’ve always wondered to the bizarre things you never thought to ask.  On this episode: Goosebumps are a valuable tool for many animals. They keep mammals with thick fur warm by trapping air near their skin, or help make them look bigger when facing off against a rival. However, in humans a wide range of emotions can also induce goosebumps. BUT WHY? Join PopSci Editor Sarah Durn and Editor-in-Chief Annie Colbert as they explain the science AND chat with Goosebumps legend, RL Stine.  Read the full story that inspired this episode: https://www.popsci.com/science/why-goosebumps-happen/ If you have a question for a future episode, go to: PopSci.com/ask Learn more about your ad choices. Visit podcastchoices.com/adchoices