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Life-seeking robot and Europa’s ice with Peter Doran
A life-seeking robot being tested now in Antarctica might someday be used to find signs of life on other worlds, such as on Europa. Read more.
June 27, 2008
Can killer bees swarm into water?
Killer bees won't dive in after you - but they may hover above the water, ready to attack when you come up for air.
June 15, 2008
Studies of chimps shed light on ancient humans
Listen to anthropologist Jim Moore, on what's so important about a Tanzania study that provides the first evidence that chimps use tools to forage for tubers.
June 8, 2008
Arctic haze and climate change
Murphy says you could look out the window of the airplane and see the air colored brown as you were flying, even though you're hundreds or thousands of miles from the nearest big city. He talks about the sources of this haze.
June 4, 2008
How do hibernating animals know when to wake up?
Hibernators have an internal clock, a series of chemical reactions controlled by the hypothalamus of the animal's brain. Read more about hibernating animals.
June 1, 2008
Why do ladybugs sometimes swarm?
With few predators and plenty of aphids to eat. the Multicolored Asian Lady Beetle has undergone a population explosion. Learn why ladybugs sometimes swarm here.
May 29, 2008
Does a pelican swallow everything it catches in its pouch?
Pelicans can swallow all the fish they catch in their huge bills - but it helps if they drain out excess water first. Read more about the pelican here.
May 29, 2008
How do hummingbird chicks’ long beaks fit in the tiny eggs?
The beak can fit inside the egg - because, when the tiny chick hatches out, the beak is just a tiny bump on the chick's head. Read more about the hummingbird.
May 29, 2008
What holds fog together?
Even though the water droplets that make up fog may seem suspended, they're actually falling. They're just not falling very fast.
May 17, 2008
Clear skies over Arctic cause more melting
More Arctic sea ice melts under sunny and clear skies. Why is that important? Because sea ice is one of the most visible manifestations of climate change.
May 3, 2008
