Dolphins in the Gulf of Mexico have traces of human medications – including powerful opioids, muscle relaxants, and sedatives – in their fat, according to a new study that is sounding the alarm on ...

The effects of the opioid epidemic may not be limited to humans, with dolphins found to have fentanyl in their systems. A large proportion of bottlenose dolphins in the Gulf of Mexico were found to ...

MARATHON, Fla. — Through the muddied haze of an artificial lagoon, bottlenose dolphins Delta and Reese knew what to do. Two buttons situated on opposite edges of the lagoon would, if hit in tandem, ...

A fishing community in southern Brazil has an unusual ally: wild dolphins. Accounts of people and dolphins working together to hunt fish go back millennia, from the time of the Roman Empire near what ...