President Obama used the backdrop of the Florida Everglades this Earth Day to highlight the dangers posed by a changing climate. He also took a swipe at Florida's Republican governor, who's been accused of discouraging state workers from discussing global warming.
"Climate change can no longer be denied," Obama said. "It can't be edited out. It can't be omitted from the conversation. And action can no longer be delayed."
It has been about a decade since beekeepers and scientists began documenting a decline in honeybee populations and other important pollinators.
Even if you're not a lover of bees or honey, you should know that bees are critically important to our food supply. They help pollinate billions of dollars of crops each year, from apples and carrots to blueberries and almonds.
So if bees are threatened, ultimately, the production of these crops will be threatened, too.
A study that asked a few dozen pairs of twins to brave a swarm of hungry mosquitoes has revealed another clue to the cluster of reasons the insects are more attracted to some people than others: Genes matter.
For all their talk about evidence-based medicine, a lot of doctors don't follow the clinical guidelines set by leading medical groups.
Consider, for example, the case of cataract surgery. It's a fairly straightforward medical procedure: Doctors replace an eye's cloudy lens with a clear, prosthetic one. More than a million people each year in the U.S. have the surgery — most of them older than 65.
Bird flu has been striking chicken and turkey farms in parts of the West and Midwest. This past week, it hit a flock of millions egg-laying chickens in northeastern Iowa. Update 4/22/2015: The USDA now says that around 3 million birds were affected in the Iowa facility — down from a previous estimate of 5 million.
At the Gulf State Park Pier in Orange Beach, Ala., Wetzel Wood casts his fishing line into the rough surf of the Gulf of Mexico. He pulls his bait, a cigar minnow, through the water just beyond where the waves break for the shore.
"On a good day you'd catch king mackerel, Spanish mackerel," he says. Wood first learned to fish at the pier with his grandfather in 1969. "I've seen a lot of different things out here. It's been wonderful."