"Cocaine sharks": Predators off coast of Brazil test positive for drug, scientists say - CBS News
- "Cocaine sharks": Predators off coast of Brazil test positive for drug, scientists say CBS News
- Sharks Swimming in Waters Near Brazil Test Positive for Cocaine, Study Finds PEOPLE
- ‘Cocaine sharks’ throng Brazilian waters as drug enters ecosystem The Telegraph
- Wild sharks off Brazil coast test positive for cocaine, scientists say The Guardian
- Sharks test positive for cocaine in world’s first WJW FOX 8 News Cleveland