The dogs were trained to sniff out marijuana, and the state no longer needs their services now that Ohio has legalized recreational pot. Apparently it's too hard to retrain them to sniff other drugs.
Some butterflies are disappearing — falling to factors like pesticide use and loss of habitat. A native butterfly is making a surprising comeback in Florida, where it was thought to be wiped out.
Scientists have long struggled to study how whales produce sound. A new paper in the journal Nature paints the most complete picture yet of how baleen whales produce their iconic, haunting calls.
A planned breeding facility in south Georgia would house tens of thousands of monkeys for research. It's now getting pushback from residents and animal rights activists.
Could the same economic forces that helped propel lab-grown diamonds and lab-grown meat forward help a startup end illegal rhino poaching? The answer is elusive.
In November, Chinese President Xi Jinping raised hopes his country would start sending pandas to the U.S. again after he and President Joe Biden convened in Northern California.