<p><strong>Status: Critically Endangered</strong></p><p>While protected by law in Madagascar, the critically endangered ploughshare tortoise <em>(Astrochelys yniphora)</em> sometimes falls prey to human smugglers. It’s among the 25 most endangered turtles in the world. Its name comes from the plow-shaped projection between its front legs. Photographed at <a href="http://www.turtleconservancy.org/" target="_blank">Turtle Conservancy</a>, Ojai, California.</p><p class="p1"><a href="http://www.cafepress.com/Art.1670923299" target="_blank"> Buy a print</a> | &nbsp;<a href="http://www.natgeocreative.com/photography/2325305" target="_blank">License this photo</a></p>

Ploughshare Tortoise

Status: Critically Endangered

While protected by law in Madagascar, the critically endangered ploughshare tortoise (Astrochelys yniphora) sometimes falls prey to human smugglers. It’s among the 25 most endangered turtles in the world. Its name comes from the plow-shaped projection between its front legs. Photographed at Turtle Conservancy, Ojai, California.

Buy a print |  License this photo

Photograph by Joel Sartore, Nat Geo Image Collection

Amphibians and Reptiles

A selection of portraits from Photo Ark, a project to document the world's animals before they disappear.

DON'T MISS THE REST OF THIS STORY!
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.

Create your free account to continue reading

No credit card required. Unlimited access to free content.
Or get a Premium Subscription to access the best of Nat Geo - just $19
SUBSCRIBE

Read This Next

Is banning fishing bad for fishermen? Not in this marine reserve
SeaWorld allegedly violated the Animal Welfare Act. Why is it still open?
'World’s worst shipwreck' was bloodier than we thought

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet