Scientists found a “bright yellow” creature with a “powerful” call in a disputed region of French Guiana and discovered a new species, a study said. Photos from Maël Dewynter via Mônico, Courtois, ...

Scientists found a color-changing creature calling from the edge of a forest in French Guiana and discovered a new species, a study said. Photo from Elodie Courtois via Mônico, Courtois, Koch, Blanc, ...

As darkness seeped into a forest in South America, a "bright yellow" creature with "large" eyes perched on the leaves and began calling. The "powerful" sound caught the attention of nearby scientists ...