The 1-inch long animal, with piercing red eyes ... Phia Oac–Phia Den National Park is in northern Vietnam near the border with China. The research team included Hoa Thi Ninh, Tao Thien Nguyen ...

The “low-pitched” sound is the call of a 2-inch frog — and a new species. Kaloula discordia, or the south Vietnamese painted frog, was discovered in a pond along the road of the national park by ...