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For coastal cities around the world, surf tourism brings huge revenue, but it can also bring conflict. Lindsay Usher (Old Dominion University) studies the rough waves that are sometimes made between locals and surf tourists. And: It’s no surprise that dogs make friends at the dog park, but it turns out people do too. Ed Gomez (Old Dominion University) says that dog parks build community and cut back on crime. Plus: After starting an antique photo collection, Ann-Janine Morey (James Madison University) discovered that old photos of people with their pets can teach us a lot about class.

colorful-autumn-mountainLater in the show: Despite what many people believe, fall leaf color in Virginia is remarkably consistent every year. Dendrologist John Seiler (Virginia Tech) has been studying fall leaf color for decades. Also: Biologist Dan Cristol (College of William and Mary) says mercury pollution in waterways is not only bad for fish-eating birds, but also for songbirds, who are absorbing the toxin through the spiders they eat.

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