https://www.live-feeds.com/feed/scientists-examined-a-165-million-year-old-fossil-from-china-and-found-a-broad-swimming-tail-plus-bony-thContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/scientists-examined-a-165-million-year-old-fossil-from-china-and-found-a-broad-swimming-tail-plus-bony-thhttps://www.live-feeds.com/feed/scientists-examined-a-165-million-year-old-fossil-from-china-and-found-a-broad-swimming-tail-plus-bony-th#u122589Thu, 15 Oct 2026 01:31:33 +0000Scientists examined a 165-million-year-old fossil from China and found a broad swimming tail plus bony throat structures. The Jurassic mammal predecessor, named Megacauda sungei, could feed and swallow in ways seen in modern mammals. It lived during the Jurassic period and had advanced swallowing anatomy, revealing an early step toward the ability to safely nurse on milk.Why it mattersThis discovery provides insight into the evolution of mammals and their ability to chew and swallow food. The fossil suggests that some early relatives of mammals had already developed ways of chewing and swallow