A "walk-through" enclosure at the London Zoo apparently allows visitors to get a little too close to resident squirrel monkeys and several people have the bite marks to prove it, according to details of a report published in a U.K. newspaper.
The Camden New Journal says 15 people suffered bites from the black-and-tan monkeys over a 12-month period last year.
The fear of something like a major oil spill in environmentally sensitive waters comes as the number of vessels plying the world's oceans has risen 20 percent in the past 15 years, from 85,000 to 105,000, the report, released on World Oceans Day, says.
In Southern California, a nuclear power plant that supplied energy to more than a million homes is shutting down for good. As NPR's Ina Jaffe reports, the San Onofre nuclear plant has been idle for repair since January of 2012.
INA JAFFE, BYLINE: The twin, white domes at the San Onofre nuclear power plant have been landmarks on the California coast for more than four decades.
This is SCIENCE FRIDAY. I'm Ira Flatow. In the disease multiple sclerosis, the body's own immune cells stage a mutiny. Those cells, white cells, normally go after foreigners in the body like bacteria or other invaders that make us sick. But in MS, the immune cells go after the body itself, attacking the myelin covering that wraps around nerve cells. As that myelin gets degraded, nerve signals don't get transferred properly, and that's what leads to the symptoms of MS.