extinction

The endangered cactus behind Mexico’s sweet secret

In Mexico, September means chiles en nogada season. But one key ingredient, a candied barrel cactus called biznaga, is now illegal because it's vanishing in the wild.

Next time you see a vulture picking over a carcass, say ‘thank you!’

Large scavengers like vultures and hyenas do an important job in protecting human health. But studies show these creatures are on the decline, allowing for the emergence of disease.