Origin of birds - Wikipedia, the free encyclopedia

Origin of birds - Wikipedia, the free encyclopedia

瀏覽:912
日期:2026-04-22
The origin of birds refers to the initial stages in the evolution of birds. The scientific consensus is that birds are a group of theropod dinosaurs that evolved during the Mesozoic Era. On July 31, 2014, scientists reported details of the evolution of bi...看更多