Wolves were native to the Yellowstone National Park until hunting wiped them out. In 1995, when the wolves began to come back, something interesting happened: The rest of the park began to find a new, more healthful balance.
Bernie Krause has been recording the wild â€” the wind in the trees, the chirping of birds â€” for 45 years. He has seen many environments radically altered by humans, sometimes even by practices thought to be environmentally safe.
Originally published on Sun September 29, 2013 9:13 am
If you were still cheering for Walter White at the start of the sixth season (or, as AMC contracts call it, the second half of the fifth season), a mustard stain on a doctor's jacket might be one reason why.
During an experiment, marketing professor Remi Trudel noticed a pattern in what his volunteers were recycling versus throwing in the garbage. He then went through his colleagues' trash and recycling bins at Boston University for more data.
He found the same pattern, says NPR's Shankar Vedantam: "Whole sheets of paper typically went in the recycling, but paper fragments went in the trash."
Same type of paper, different shapes, different bins.
One thing you can say about the diminutive speckled sea louse: it's always on time.
Scientists studying the tiny crustacean, a marine cousin of the wood-louse, found that it runs not one, but two internal clocks. Not only does the creature have a circadian rhythm, or so called "body clock" like most land-dwelling animals, including humans, but it also has a circatidal clock that follows the 12.4-hour cycle of the tide.