People With Asthma, Hay Fever May Have Higher Risk of Psychiatric Disorders

Doctors who treat patients with asthma and hay fever might want to also keep an eye on their mental health, according to the results of a large new study out of Tri-Service General Hospital in Taiwan. These unlikely compatriots appear to be linked, with people with asthma and hay fever at a 1.66-fold higher risk of developing a mental illness than those without the ailments. See more

Rainbow Chameleons Display True Colors When Courting

About 160 million years ago, a swath of land roughly the size of Texas drifted away from the southeast side of the African continent, creating what we now know as Madagascar. The terrain's geographical isolation meant that many of its flora and fauna evolved in spectacularly unique ways, including a vast array (at least 420 so far) of funky little reptiles, 95 percent of which live only on this island and its outliers. See More

Plastic-Eating Enzyme May Be Our Planet's New Hope

The DEA Wants Your Old Drugs — Stat!

Casting Han Solo Was Harder Than Blowing Up the Death Star

Harrison Ford wasn't always one of the biggest stars in the world. Back when George Lucas got the green light for "Star Wars," Ford was an actor taking bit parts and working as a carpenter to pay the bills. Ford and Lucas had worked together briefly on the set of "American Graffiti," but Ford wasn't even on the list of actors Lucas had in mind for Han Solo. See More >>>