During his visit, Kraus found several “large” snakes with white chins, the study said. Intrigued, he took a closer look at the animals, compared them with other known species and soon realized he’d ...

Photo from Kraus (2025), shared by Fred Kraus Coal black tree snakes are considered “large,” reaching about 4 feet, 8 inches long, the study said. They have black eyes with a “uniformly ...

Photo from and shared by Fred Kraus Atra tree snakes are considered “moderately large,” reaching about 4 feet, 1 inch in length, the study said. They have black eyes and “matte black ...

On a small island of Papua New Guinea, a hawk tried to attack a “large” 4-foot-long predator but ended up becoming its prey instead. A scientist stumbled up on the scene and watched the ...