Dolphins are like humans in many ways: They're part of complex social networks and, just as in people, a dolphin's brain is big, relative to the size of its body. But there's something else, too — a study published Monday shows these acrobats of the sea use name-like whistles to identify and communicate with each other.
A crowd formed today at the U.S. Botanic Garden here in Washington, D.C. It's a place to see beautiful flowers and usually ones that smell fantastic. But today, one exotic specimen on display was the opposite of that. It's the titan arum and NPR's Allison Keyes tells us people flocked to the greenhouse in hopes of getting a rare whiff of the flower's putrid essence.
ALLISON KEYES, BYLINE: From the line and the excited faces of titan arum fans hurrying down the path to the door, you'd think The Beatles were here.
Not so long ago, most people thought that the only good microbe was a dead microbe.
But then scientists started to realize that even though some bugs can make us sick and even kill us, most don't.
In fact, in the past decade attitudes about the bacteria, fungi, viruses and other microbes living all over our bodies has almost completely turned around. Now scientists say that not only are those microbes often not harmful, we can't live without them.
Wildfires were once essential to the American West. Prairies and forests burned regularly, and those fires not only determined the mix of flora and fauna that made up the ecosystem, but they regenerated the land.
When people replaced wilderness with homes and ranches, they aggressively eliminated fire. But now, scientists are trying to bring fire back to the wilderness, to recreate what nature once did on its own.
One place they're doing this is Centennial Valley, in southwestern Montana.
Can astronauts Neil Armstrong and Buzz Aldrin's "giant leap for mankind" be permanently preserved? Two House Democrats want to do just that: They proposed a bill to create a national historic park for the Apollo 11 mission — on the moon. The legislation would designate a park on the moon to honor that first mission, as well as preserve artifacts from other lunar missions