animals

Police dogs in K9 units trained to find potent synthetic opioids like fentanyl risk overdosing. Massachusetts State Police plan to teach officers to administer Narcan to their canines.

There's more than one way to make color, nature tells us. And more than one way to use it to your own advantage.

Some people infected with pathogens spread their germs to others while remaining symptom-free themselves. Now, investigators at the Stanford University…

Squirrel monkeys, chimps and humans: Two among these are willing to give up an unfair advantage, but why? It's about greasing the social wheels, scientists say.