sea turtles underwater

Sea turtles are down but not out

All seven species of marine turtle face obstacles, but sea turtles seem to respond to conservation efforts. Can we help them rebound?

Green turtles congregate near a dock at a fledgling ecotourism project at Little Farmer's Cay in the Bahamas. Greens were so numerous in the Caribbean during Christopher Columbus' day “it seemed ships would run aground on them,” according to accounts of his second voyage in 1494. Today the International Union for the Conservation of Nature considers greens endangered.

Photograph by Thomas P. Peschak

We've hunted them, hit them with ships, snagged them with nets and hooks, built beachfront condos on their nest sites, and choked them with plastic bags.

As the world struggles to confront climate change and biodiversity loss, six of Earth's seven species of sea turtles are considered threatened or endangered. The risks facing the seventh, Australia's flatback, are less clear.

And yet, somehow, these creatures survived ice ages and the extinction event that wiped out the dinosaurs. They’re still holding on today—even recovering in many places. In fact, scientists increasingly suspect that the planet's marine turtles may be far more resilient than once thought. But they need our help.

National Geographic photographer Thomas Peschak recently spent more than a year photographing

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