Small crustaceans that live in the Mariana and Kermadec trenches were found to be contaminated with 50 times more toxic chemicals than crabs that survive in heavily polluted rivers in China

Mariana

Trench

10,994m

deep

South Pacific

Ocean

Kermadec

Trench

10,047m

deep

Australia

Sydney

500 km

500 miles

China

Mariana

Trench

10,994m

deep

South Pacific

Ocean

Kermadec

Trench

10,047m

deep

Australia

Sydney

500 km

500 miles