Around 10pm one night in October 2017, in the rain forests of central Sumatra, Feri grabs a hammer, loops it over his shoulder, and scales a tree so massive ...

Are synthetic rhino horns an ingenious conservation tool–or a misplaced idea that will make things worse? When 1,028 rhinos were poached in South Africa in 2...

Surely koalas are one of Australia’s most famous animals. It’s not hard to see why because  these aww-inducing marsupials can make even the coldest hearts me...

Using land to produce food, clothing, paper, and other goods has a huge impact on the planet's climate. In fact, it’s responsible for three-quarters of globa...

One clear morning in February, off Costa Rica’s Cocos Island, a small, boxy submarine was lowered into the water. The vessel quietly descended 100 feet, then...

We’ve all seen photographs of majestic elephants sporting long, off-white tusks on either side of their trunks. This ivory is both beautiful on the animals a...