Imagine this: Another child has spit milk through a straw directly into your severely milk-allergic child's face. Your child goes into anaphylaxis, having been bullied specifically because of his or her food allergy.
Every year, people add 30 billion tons of carbon dioxide to the air, mostly by burning fossil fuels. That's contributing to climate change. A few scientists have been dreaming about ways to pull some of that CO2 out of the air, but face stiff skepticism and major hurdles. This is the story of one scientist who's pressing ahead.
With its pleasant climate, Florida has become home to more exotic and invasive species of plants and animals than any other state in the continental U.S. Some invasive species have been brought in deliberately, such as the Burmese python or the Cuban brown snail. But the majority of species are imported inadvertently as cargo.
Amanda Hodges, who heads the biosecurity research lab at the University of Florida, says that until recently, scientists saw about a dozen new bugs arrive in Florida each year.
Harry Kaplan practices pitching during Home Run Baseball Camp at Friendship Recreation Center in June. Kaplan's arm is stretched long and toward the ground as his hips are faced away from the catcher. A chimp, in contrast, could never throw a fastball.
The ability to throw a baseball or any object with speed and precision is unique to us humans. And that ability depends on certain features of our anatomy that arose in our ancestors over 2 million years ago, according to a study published in this week's issue of the journal Nature.
Until 1977, Lyme disease was almost unknown. But in the decades since a Yale rheumatologist first described an unusual cluster of arthritis cases in Lyme, Conn., the disease has become the most commonly reported tick-borne illness in the country. Acute symptoms of Lyme disease commonly include a bull's-eye rash followed by flu-like symptoms.
Chimpanzees play at Chimp Haven, a retirement home for former research animals, in Keithville, La.
Credit Gerald Herbert / AP
The National Institutes of Health says it will retire hundreds of chimpanzees that the agency had been using for research. Animal rights activists see the move as a big step towards ending the use of chimps in research, but it will be awhile before any of the research chimps find their way into retirement homes.