They fly by night, and the males arrive first to set up the breeding grounds. Not only that, but they sport regional dialects. Naturalist Laurie Sanders takes a look at a favorite songster - the red-winged blackbird.

Unlike their close cousins, the Chimpanzee, when it comes to sharing Bonobo apes share and share alike. Chimps will fight over food but Bonobos are peace-loving animals and get their just rewards for sharing. Duke University evolutionary biologist Brian Hare discusses his latest research on Bonobo behavior with host Jeff Young.

Cell phones may be hazardous to your health. The science is inconclusive but some states want to require warning labels on cell phones. David Carpenter is director of the Institute for Health and the Environment at the University at Albany. He tells host Jeff Young about research that shows a link between cell phone use and cancer.

Some animals use sticks, leaves or mud to build durable nests. The Tungara frog uses bubbles. Living on Earth’s Bridget Macdonald reports on how scientists are studying frogs foam in order to make a similar material for medicinal use.

Much of inland California is rural and poor, a sharp contrast with hip, upscale coastal life. Residents in the rural regions sometimes live with a high degree of pollution. Producer Devin Robins visited three women who became activists over concerns for their communities’ health.

The Department of Justice is investigating whether the world’s largest seed producer, Monsanto, has stifled competition in order to keep prices high. Host Jeff Young talks with economist, lawyer, and farmer Neil Harl about whether the biotech giant could be violating anti-trust laws.

Living on Earth continues its series exploring features of the American landscape, based on the book Home Ground: Language for an American Landscape, edited by Barry Lopez and Debra Gwartney. In this installment, writer Donna Seaman explains the term "looking-glass prairie."

Endocrine disrupting chemicals like bisphenol A have been making news lately, with several states passing regulations limiting or banning their use. The trajectory of BPA is similar to another chemical, commonly known as DES, once prescribed for pregnant and menopausal women. Host Jeff Young talks with Professor Nancy Langston about the history of endocrine disrupting chemicals and how this history can inform future chemical regulation. Her book is called, “Toxic Bodies: Hormone Disruptors and the Legacy of DES.”