Kelp isn't a new flavor enhancer for brewers. For hundreds of years, coastal farmers in Scotland grew grains in seaweed beds. But briny brews have been slow to catch on in the United States.
We know how damaging and costly, in many ways, such natural phenomena can be — but the devastation is not surprising, once you know how much energy is involved, says astrophysicist Marcelo Gleiser.
NPR's Robert Siegel talks with Phil Klotzbach, a research scientist at Colorado State University, about the science of hurricanes and what makes Hurricane Irma so unusual.
Several species of parrots in Southeastern Peru regularly gather at a cliff face in the Amazon basin to eat clay. So do other animals, including humans.