It’s our listener mail round up, and this week it’s all about communication in the natural world, like: how do migratory animals teach their young how to migrate and where to go? Do sharks smell underwater? And, are plants talking to each other?Plus, a mini-story about a lost baby squirrel and a Bluetooth speaker.Take a listen!How do young animals know how to migrate?Can plants talk to each other?What makes an animal a pest?How do shark noses work underwater?Featuring: Patrik Byholm, Richard Karban, Bethany Brookshire, and Stephen Kajiura. SUPPORTOutside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Talk to us! Follow Outside/In on Instagram or Twitter, or discuss the show in our private listener group on Facebook. Submit a question to our Outside/Inbox. We answer queries about the natural world, climate change, sustainability, and human evolution. You can send a voice memo to outsidein@nhpr.org or leave a message on our hotline, 1-844-GO-OTTER (844-466-8837). LINKSVisit outsideinradio.org for video of a Bluetooth speaker-assisted baby squirrel rescue.On animal migration:A magnetic compass aids monarch butterfly migrationPaternal transmission of migration knowledge in a long-distance bird migrantOn plants talking:Rumor Has It…: Relay Communication of Stress Cues in PlantsTowards understanding plant bioacousticsOn what makes an animal a pest:The long history of speed at Reuters about carrier pigeons and The Tastiest Bird You Can Legally Eat about the tastiness of pigeon meat, also known as squabBurmese Pythons: The Giant Invasive Snake at Risk in Its Native LandOn sharks:Check out the Shark Lab at Florida Atlantic University.Scientists believe sharks came into existence about 400 million years ago. CREDITSHost: Nate HegyiReported and produced by Felix Poon, Jeongyoon Han, Taylor Quimby, and Jessica HuntEdited by Taylor QuimbyRebecca Lavoie is our Executive ProducerSpecial thanks to Lani Asuncion and Angus MurphyMusic for this episode by Blue Dot SessionsOutside/In  is a production of New Hampshire Public Radio