Scientists found cocaine in sharpnose sharks in Rio, suggesting human drug consumption is harming marine life. High cocaine levels impacted animals in Santos Bay.
Cocaine in sharks was 100 times higher than in other marine animals, indicating widespread drug trade in Brazil, possibly through sea dumping or sewage discharges.
Cocaine's presence in sharks suggests significant drug influx into the environment, impacting marine species. The source of the cocaine in the sharks remains a mystery.
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