Overview

• All 13 Brazilian sharpnose sharks tested had cocaine in their liver and muscle tissue.
• Scientists believe the cocaine entered the water through sewage and illegal drug labs.
• The study raises questions about the impact of cocaine and other pollutants on marine life and ecosystems.
• Researchers emphasize the need for further studies to understand the full effects on sharks and other species.
• The findings point to a larger issue of various contaminants, including pharmaceuticals, entering aquatic environments.