By the mid-1990s, the 50 million-strong vulture population had plummeted to near zero because of diclofenac, a cheap non-steroidal painkiller for cattle that is fatal to vultures. Birds that fed ...

More than 53 million U.S. adults are living with arthritis, and because of that, close to $300 billion is spent annually on medical care and lost wages, according to the Centers for Disease ...