We're going to hear now about what could be thought of as the Rip Van Winkle of the plant world. Scientists have found examples of a kind of plant known as bryophytes. And after spending 400 years buried by a glacier, when the ice receded the plants started growing again.
NPR's Joe Palca has more.
JOE PALCA, BYLINE: Bryophytes don't get much respect. They're not the gaudy seed plants people plant in their gardens or give as gifts. Jonathan Shaw runs the bryology lab at Duke University.
This is TALK OF THE NATION. I'm John Donvan in Washington. Neal Conan is away. A small hole in the ground, that's all it looked like the other day in the photo of the Christian Science Monitor, published in its coverage of a tornado that ripped through Moore, Oklahoma, a small hole in the ground surrounded on all sides by the wreckage of totally flattened homes, right up to the very edge of that hole in the ground, which oddly is rectangular in shape in the photo and has a door attached to it, flung open.
This is MORNING EDITION from NPR News. I'm Renee Montagne.
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And I'm David Greene, good morning
Let's say you're at work and you find a document that shows your company has been giving out misleading information. Or, let's say you see a co-worker act in an abusive or unethical manner. Would you speak up? Well, social scientists have been asking why whistle-blowers become whistle-blowers.
Attributing human characteristics to animals makes for great cartoons, but it's not usually considered rigorous science. Now, a new book argues that animals do think and feel in ways similar to humans.
Barbara J. King is a professor of anthropology and a commentator on NPR's science blog, 13.7. And her book, How Animals Grieve, makes a powerful case for the presence of love, affection and grief in animals — from a house cat mourning her lost sister to elephants who pay respects to the bones of their matriarchs.
Once upon a time, there was a small Hungarian village that was very proud of its sour cherries. The village was called Újfehértó. As in many Hungarian villages, tall cherry trees lined the streets and provided welcome shade in the summertime.
When communism came to Hungary after World War II, the government introduced big collective farms, and Hungarian scientists had to decide which cherries the farms should grow.
We now know what caused the Irish potato famine. Scientists have pinpointed the pathogen by using plant samples collected in the mid-19th century. Weekends on All Things Considered host Jacki Lyden talks about it with the study's co-author, Sophien Kamoun of the Sainsbury Lab in the United Kingdom.
I email. I search. I shop. I Facebook. I stream. I Skype. Every year I seem to do these things a little bit more. Stroke by stroke, as I slip deeper into the Internet's embrace, I find myself wondering:
"What would happen if the Internet went away?"
Can it? It was famously built to be indestructible, with no center, no hub, no "off" or "on" switch. It is, after all, a creature of the U.S. Defense Department, designed, supposedly, to survive a global war.
The Ring Nebula, whose iconic shape and large size make it a favorite of amateur astronomers, can now be seen in new detail, after NASA's Hubble Space Telescope captured a sharp image of the nebula. Researchers say the new clarity reveals details that were previously unseen, and a structure that's more complex than scientists had believed.
In parts of the southeastern US, aggressive fire ants have been driven out by an even more recent arrival, the tawny crazy ant. Edward LeBrun, a researcher at the University of Texas at Austin, describes the newcomers and how one invasive species can out-invade another.
Populations of frogs, salamanders and other amphibians are declining at an average rate of 3.7 percent each year, according to a U.S. Geological Survey study released this week. Researchers say the study is the first to calculate how quickly amphibians are disappearing in the United States.
"If the rate observed is representative and remains unchanged, these species would disappear from half of the habitats they currently occupy in about 20 years," according to the USGS.
This is SCIENCE FRIDAY. I'm Flora Lichtman, filling in for Ira Flatow today. If you could count up all the bacteria in your house, how many different species do you think you'd find - 50, a couple hundred? How about thousands, with an S at the end? My next guest had volunteers swab surfaces in their home - pillowcase, the TV screen, the toilet seat - to see what might be living there. And in each of the 40 households, the same spots were swabbed.
Smartphones, tablets and computers could help seniors stay connected to their communities and families. But a hefty price tag, steep learning curves, and designs meant for younger eyes and hands could keep some older adults from logging on. Guests discuss the best ways for seniors to tackle new technology, and how devices can be adapted to accommodate older users.