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Podcast: Smoking mothers, record-breaking sea turtles, and how starlings move like liquid helium

Do pregnant women alter their infants’ DNA by smoking? What can humans do to protect a sea turtle that migrates 4000 kilometers from home? And how is a flock of birds like liquid helium?

Science’s News Intern Xochitl Rojas-Rocha chats about these stories and more with Science’s Sarah Crespi.