Large amounts of cocaine found in Brazilian sharks

Researchers at the Rio de Janeiro-based Oswaldo Cruz Foundation (Fiocruz) found traces of cocaine in 13 sharks of the species Rhizoprionodon lalandii, popularly known as tubarão-bico-fino-brasileiro, cação rola rola or cação-frango, according to a study in the appearing this week in the journal Science of The Total Environment, Agencia Brasil reported Tuesday.