This article is adapted from Joel Sartore’s new book, Vanishing, published by National Geographic Books. Joel Sartore has been photographing animals for his Photo Ark project for 13 years.

the project is now called the National Geographic Photo Ark. No matter its size, each animal is treated with the same amount of affection and respect. The results are portraits that are not just ...

Let's put your animal knowledge to the test. Take our quiz and see if you can identify the scaly critters and furry mammals featured in our close-up photos.

When can you start training a puppy? Why is the internet obsessed with Pesto the penguin? Time to test your baby animal ...

Someday these animals will be crucial to the survival of their species. But for now they’re doing what felines do best: taking a catnap. The National Geographic Photo Ark is a multiyear effort ...

This story appears in the June 2018 issue of National Geographic magazine ... rackets that have made billions of dollars trafficking animals such as elephants and rhinos have added parrots ...

If caught on land, these animals have no chance to evade predators, such as big cats, and must try to defend themselves by clawing and biting. Though they couldn't be clumsier on land, sloths are ...

They are speedy animals capable of reaching 40 miles an hour, and their powerful hind legs can propel them on leaps of more than ten feet. They use these leaps and a zigzag running style to evade ...

Not all wild animals are found in Reno's nightclubs; some are found in Animal Ark. Sitting on 38 acres 25 miles north of Reno, this facility is not a zoo, but rather a "safe haven for injured ...

Fond also of the human animal, he loves parties and has been ... sponsored by the Smithsonian and the National Geographic Society. Among collectors’ items he particularly hoped to pick up ...

This natural survival strategy, known as coprophagy, reveals how wildlife makes the most of every available resource.

They eat detritus (dead organic matter), including fallen leaves and plants, animal feces, moss, and mushroom spores, and then recycle their food into nutrient-dense waste, which fertilizes ...