by Kelly WANG Agence France-Presse WUHAN, China (AFP) — In an oxbow lake along the middle reaches of the Yangtze River, a breathy sigh pierces the surface stillness as one of China’s most endangered animals comes up for a gulp of hazy air. A slick black back with no dorsal fin arches briefly above the water line before plunging back down. Such glimpses of the shy Yangtze finless porpoise, the only aquatic mammal left in […]