Let's get personal on Whatsapp: https://whatsapp.com/channel/0029Va8VC502ER6r1yk1yP2Y Millions of years ago, Earth looked very different. All the continents were fused into one, teeming with life that was both beautiful and terrifying. When you think of prehistoric times, you might picture a T. rex rampaging through the jungle with its razor-sharp teeth. But even before the dinosaurs, there were other giant creatures ruling the Earth. 00:00 What Was Earth Like Before the Dinosaurs? 01:54 299 Million Years Ago 02:50 290 Million Years Ago 04:53 273 Million Years Ago 06:07 260 Million Years Ago 07:24 252 Million Years Ago Questions or concerns? Contact us at https://underknown.com/contact/ Interested in sponsoring our episodes or collaborating? Email us: inquiries@underknown.com Get our 100 best episodes in one mind-blowing book: http://bit.ly/ytc-the-what-if-100-book Join this channel to get access to perks: null Check out our other channels: How to Survive: https://bit.ly/how-to-survive-show Aperture: https://bit.ly/aperture-show Your Body On: https://bit.ly/your-body-on-show Watch more what-if scenarios: Planet Earth: http://bit.ly/YT-what-if-Earth The Cosmos: http://bit.ly/YT-what-if-Cosmos Technology: http://bit.ly/YT-what-if-Technology Your Body: http://bit.ly/YT-what-if-Body Humanity: http://bit.ly/YT-what-if-Humanity T-shirts and merch: http://bit.ly/whatifstore Suggest an episode: http://bit.ly/suggest-whatif Newsletter: http://bit.ly/whatif-newsletter What If elsewhere: Instagram: http://bit.ly/whatif-instagram Discord: https://discord.gg/Bj5UnspbwE Twitter: http://bit.ly/whatif-twitter Facebook: http://bit.ly/facebook-whatif What If in Spanish: http://bit.ly/YT-Spanish-what-if What If in Mandarin: http://bit.ly/YT-Chinese-what-if Podcast: http://bit.ly/yt-what-if-show-podcast What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way. Produced with love by Underknown in Toronto: https://underknown.com/ Contact us at https://underknown.com/contact/ #whatif #dinosaurs #permianperiod #prehistoric #earth #planetearth