There’s a Dinosaur in My Tree: A Journey of Birds from the Mesozoic to Today скачать в хорошем качестве

There’s a Dinosaur in My Tree: A Journey of Birds from the Mesozoic to Today

with Dr Derek W. Keats To understand modern birds, we need to go back in time, way back in time. In fact we need to go all the way back to the end of the Permian around 252 million years ago, when a mass extinction event wiped out most life on earth. The aftermath saw the expansion of reptiles, and the evolution of a group of reptiles that we call the dinosaurs today. Dinosaurs continued to develop during the Triassic period, but really came into their own after another mass extinction that separated the Triassic and Jurassic periods. One group of dinosaurs in particular are relevant to the story of birds: the Theropoda. In this webinar we look at what the world was like during the Mesozoic when birds began to emerge some 145 million years ago, and look at the evolution of the modern theropods that we call birds. #birding #birds #birdevolution #dinosaurs #learnthebirds