Researchers at the Oswaldo Cruz Institute in Brazil found cocaine in 13 Brazilian Sharpnose sharks caught off the coast of Rio de Janeiro.

Researchers tested sharks off of the Brazil coast for cocaine and found high levels of the drug in all of the animals, according to a new study. The study included 13 Brazilian sharpnose sharks.

Researchers at the Oswaldo Cruz Institute in Brazil found cocaine in 13 Brazilian Sharpnose sharks caught off the coast of Rio de Janeiro.

This marks the first documented instance of cocaine found in free-range sharks, with concentrations recorded at 100 times higher than any previously noted in aquatic species.

‘Cocaine SHARKS’ found prowling waters after being ‘chronically exposed’ to drug dumped in ocean by narco smugglers Cocaine could affect sharks' eyesight and fertility, scientists say ...

They tested 13 sharpnose sharks caught near Rio de Janeiro and found the drug in the liver and muscle tissue of all 13 of them, researchers at the Oswaldo Cruz Foundation said.

A team of marine biologists and ecotoxicologists affiliated with several institutions in Brazil has found cocaine in muscle and liver samples collected from Brazilian Sharpnose sharks harvested ...

Sharks off the coast of Brazil have cocaine in them and scientists believe the drug may be altering their behaviour. In a study conducted on 13 Brazilian sharpnose sharks from waters near Rio de ...

Scientists have found cocaine in the muscle tissue of sharks off the coast of Brazil in a study that shows marine animals are ingesting illicit drugs that end up in the ocean.

Thirteen sharks tested for cocaine and benzoylecgonine were found to have the illicit drug in their muscles and livers.

All 13 sharks examined were found to have unfiltered cocaine in much higher concentrations than in previous studies on other animals, indicating chronic exposure to the drug.

SHARKS in Brazil have tested positive for cocaine and scientists say they have multiple theories as to how the class A drug reached the South Atlantic Ocean. Scientists tested 13 Brazilian sharpnos… ...