Living on Earth: August 25, 2017

The Value of National Parks / BirdNote: Voices of Our Public Lands / Emerging Science Note: Backyard Garden Threat to Bees / Squash Bee: The Pollinator That Follows Farmers / Roadsides as Vital Habitat / Seeds on Ice: Preserving the World's Agricultural Heritage Learn more about your ad choices. Visit megaphone.fm/adchoices