Thread:Kanapkuba/@comment-3562042-20191031220204/@comment-33029135-20191102173727

birds appeared for the first time in the Jurassic age 160 milions years ago, mammals already existed in the Mesozoic, that is, when dinosaurs were still prevailing on earth, but due to the fact that dinosaurs were the dominant species, mammals could develop as well as birds after the extinction of dinosaurs after impact meteorite in the Yucatan Peninsula