
A wealth of epiphytes in the canopy of a Lecythis tree on the Barva Transect, Costa Rica. Catherine Cardelús
As the world gets warmer due to climate change, some species may need to find cooler habitats to compensate. In this segment, we'll talk about the potential effects of warming temperatures on plants and insects in the tropics.
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Researchers studying a sample of bacteria from water taken from a crack in a South African gold mine -- nearly 3 kilometers below the surface of the Earth -- have found that the ecosystem in the crack consists of only one organism.
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In this segment, Ira talks with Thomas Murray, head of the nonpartisan bioethics research institution The Hastings Center, about the role of science and technology in future presidential administrations, and about challenges involving bioethics facing the next presidency.
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Included in the economic rescue package signed into law last week were provisions that will, for the first time, require employers and insurance companies to give mental health issues parity with physical health issues. We'll talk about the new law, and its potential effect on treatment for addiction, schizophrenia, and other mental health concerns.
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The frost is on the pumpkin in some parts of the country -- how did your garden grow? In this segment, we'll talk about fall gardening, from crops that can be planted now, to what you can do now to prepare your garden for next year.
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From Ira's Desk: Our Podcasts: Reaching New Heights -- Our SciFri podcasts have reached a new peak: 250,000 downloads each! That makes for about a million downloads per month, over 10 milion per year! We are the second most downloaded Podcast on NPR, of all NPR programs... (more)

Annette on Energy: Liberal Fascist? Really? -- Summer is over, and so is the trial time-of-use pricing plan offered by my power company... (more)

On Sustenance: Down To Earth - Part 2 -- This summer urban agriculture got some good press and a financial boost... (more)

China Watching: Space Walk Boost for Traditional Chinese Medicine -- A few hours from now, between 9:07 a.m. EDT, and 10:27 a.m. EDT, China plans to launch its third manned space mission... (more)

Wary of indoor composting? Don't be, says SciFri guest Deborah Martin, author of "The Complete Compost Gardening Guide." A healthy worm has a pleasant odor, she says! Listen.
Trouble in the Tropics
Tropical species may be at greatest risk for extinction due to climate change.
Dogs Bark, Birds Chirp, Fish Grunt
The origin of vocal communication--like talking--may date back to prehistoric fish.
Color from Nature
Clothing could get their color—and germ-fighting properties—from a strain of marine bacteria