F or a species that tends to be portrayed as noble, intelligent, and discriminating, some dogs sure do love to eat poop. Their fecal snacking extends to foreign excrement, litter boxes, and even their ...

While poop is decidedly not on the menu for us humans, it’s a normal food for many animals. In one study in Tanzania, scientists remarked that hooded vultures showed more interest in protein-rich lion ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...