The "cocoa" frog uses spherically tipped fingers and toes to move adroitly through the trees of its remote forest home. The frog likely belongs to one of 60 animal species recently discovered in the mountain wilderness of southeastern Suriname during an expedition to some of the planet's most remote and unexplored rain forests. "I have conducted expeditions all over the world, but never have I seen such beautiful, pristine forests so untouched by humans," said ant expert Leeanne Alonso, an expedition leader with Global Wildlife Conservation.

—Brian Handwerk