Scientists have discovered that a mouse found in Africa can lose large patches of skin and then grow it back without scarring, perhaps as a way of escaping the clutches of a predator.
The finding challenges the conventional view that mammals have an extremely limited ability to replace injured body parts. There are lizards that can regrow lost tails, salamanders that can replace amputated legs, and fish that can generate new fins, but humans and other mammals generally patch up wounds with scar tissue.
We just talked about the changing demographics in this country. In fact, the Pew Research Center says Latinos will make up more than a quarter of the U.S. population by the year 2050. So we talked about how that might affect our public schools, but there's another group that's paying very close attention to these changes, and that's librarians.
This is TELL ME MORE from NPR News. I'm Celeste Headlee. Michel Martin is away. Coming up, a new documentary follows a harrowing day in an Oakland, California emergency room, where the policy questions about health care play out in real life. We talk with the director of "The Waiting Room." That's in just a few minutes.
This is TELL ME MORE from NPR News. I'm Celeste Headlee. Michel Martin is away. Coming up, it's been nearly 60 years since public schools were legally desegregated, but new research shows schools are still divided. That's in just a few minutes.
Originally published on Thu September 27, 2012 3:13 pm
In the fairy-tale world, a shiny red apple can lead to a poisonous end. But some see two genetically engineered green apple varieties, poised to become the first to gain U.S. Department of Agriculture approval,as similar harbingers of doom.
People are not getting much work done in parts of Europe. Last night, there were violent protests in Spain. They were protests against austerity measures, which is also the case in Greece, where a nationwide strike came today. It closed businesses and schools, and reporter Joanna Kakissis is following the story from Athens.