An ambitious mission aims to protect one of the Mediterranean’s last great frontiers: Caprera Canyon, a vast underwater valley off Sardinia’s coast.

Fragments of rubber balloons, plastic bags and fishing line can cause fatal blockages and injuries in sea turtles, seabirds ...

Across America, a handful of extraordinary national parks give travelers the rare chance to see endangered animals thriving ...

For decades, biologists have warned that humanity is precipitating a sixth mass extinction. By some estimates, species are ...