13 Sharpnose Sharks Off Brazil Coast Test Positive for Cocaine

Jul 23, 2024, 10:02 AM

Scientists have discovered that 13 sharks off the coast of Brazil, particularly sharpnose sharks near Rio de Janeiro, have tested positive for cocaine. The presence of the drug in the sharks' muscle and liver tissues is believed to be a result of cocaine entering the marine ecosystem, possibly through the city's sewerage system or from illegal drug labs. Marine biologists are concerned that the high concentrations of cocaine, reportedly up to 100 times higher than those found in other aquatic animals, may be altering the sharks' behavior. The phenomenon has sparked significant concern and interest among researchers and the public.