​The Photo Ark: Preserving species before they disappear

Many animal species are at risk of vanishing. It's a calamity photographer and "Sunday Morning" Contributor Joel Sartore is trying hard to prevent. Our Cover Story is reported now by Martha Teichner:

They haunt you, these eyes -- as intended.

Eye to eye, you're supposed to regard the greatest, the tiniest, and the lowliest equally.

"If we can get down and look these species in the eye, really get down low and really look 'em in the eye, and you see how lovely they are and how much intelligence there is there," said Joel Sartore, "they're telling us something. I mean, they're shouting it to me."

For ten years now, the National Geographic photographer has made it his life's mission to be their messenger and, he hopes, their protector -- their Noah building a photographic ark.

His "Photo Ark" currently houses images of more than 5,000 species, rolling past the viewer. "It would take two hours to see them all," he said. "It's supposed to just overwhelm people with what life looks like on Earth."

And what might soon be extinct.

He showed Teichner a photo of the Rabb's fringe-limbed treefrog, the very last of his kind. "His name's Toughie, because he's outlived the projection. He's like nine years old, at least, and so when he's gone, that's it. They will be extinct."

Sartore's Photo Ark will be at the National Geographic Society in Washington, D.C., until April.

Included is a northern white rhino that he photographed this summer at the Dvůr Králové Zoo in the Czech Republic. "There were five at the time. This is a very old female named Babire, and she died one week to the day after we photographed her.

"Now, there are four."

Joel Sartore with one of his subjects. CBS News

Also pictured is a Columbia Basin pygmy rabbit, which has gone extinct. "She was very near the end of her life," Sartore said. "It's intentional that you can see her from the other end of the exhibit. We wanted people to see her and have the experience of, well, this is what we're talking about. This is the consequence if we ignore the world around us. We lose thousands of species to extinction per day on this planet."

"Scientists, over the past half-billion years, have seen five mass extinctions -- think of things like volcanoes and asteroids hitting the Earth," said anthropologist Catherine Workman, Senior Director of National Geographic's Protecting Wildlife Initiative. "Scientists currently describe the loss of plants and animals now as the sixth mass extinction.

"We're losing animals at a rate 1000 times that of rates of extinction of the past, which is unparalleled. It's an extinction we haven't seen since the loss of the dinosaurs 65 million years ago. We have habitat loss, we have hunting, we have climate change, and the combination of all these threats on a planet that's shortly going to have 7.5 billion people is really hammering the planet's biodiversity."

Joel Sartore didn't set out to create a Photo Ark. It began as an act of desperation, when his wife, Kathy, was diagnosed with breast cancer, and he needed to stay home in Lincoln, Nebraska.

"I just thought, I need to shoot something. Kathy's gonna be sick for a long time, and on the days when she felt better through the chemo cycles, I just needed something to shoot."

So this world traveler, who's shot 35 stories for National Geographic (including six covers), drove to the Lincoln Children's Zoo, a mile from his house, and asked if he could photograph the animals.

"They let me take a naked mole rat and put it on a white background," Sartore said. "That's how we started it. And then I did a couple of blue and black poison dart frogs, I think. And that was 5,400 species ago."