Sharks in Vacation Hotspot Test Positive for Odd Substances

Marine biologists in the Bahamas tested shark blood to study the animals' health and made a shocking discovery.

Photo by JESUS OLARTE on Getty Images

One shark had detectable levels of cocaine. Twenty eight had detectable levels of caffeine, two over-to-counter pain relievers. They were tested for 24 legal and illegal drugs, including:

• Acetaminophen (pain...