SLIDESHOW: Protecting Sharks in Cuban Waters

Sharks have ruled the oceans for at least 400 million years. It's an extraordinary run of evolutionary survival. But now, sharks face an overwhelming threat from a single species—humans—as overfishing threatens ocean ecosystems.

This Shark Week, learn about some of the work EDF is doing to break down international barriers, and protect this misunderstood marvel of marine evolution.

This Shark Week, support our efforts to protect these great predators.

Help us fill the research gaps and improve fishing practices by starting a monthly donation today.