Sharks test positive for cocaine in waters off Brazilian coast

Sharpnose sharks off the Brazilian coast have been found to have ingested cocaine, indicating the impact of drugs on sea life due to the illegal drug trade. Researchers discovered high concentrations of cocaine in the muscle and liver tissue of sharks, possibly from illicit lab spillover, drug user sewage, or discarded packages from traffickers. The study, conducted by Brazilian and Bahamian research groups, highlights the growing threat of cocaine pollution in marine environments. While previous theories suggested drug effects on sea life, this is the first evidence of cocaine presence in free-range sharks. The researchers noted the need for further investigation into the consequences of drug contamination on aquatic ecosystems and shark behavior. The study raises concerns about the potential health risks posed by highly contaminated sharks, considering their consumption as food in Brazil. The origin of the cocaine remains unclear, with possibilities including drug lab runoff, user waste, or trafficker discards.