The Largest Extinction Event on Earth Was NOT Caused By a Meteor | Earth During the Dinosaurs

If you missed the first episode of this series, check out "Earth Before the Dinosaurs" here: https://www.youtube.com/watch?v=dPUHMStpfqo And thanks to the sponsor Opera One for sponsoring today's video, try out a new web browser experience here: opr.as/Opera-browser-Astrum

Nothing like finding out youtube hasn't been showing channels in your subscriptions list again. Seems they're pushing Shorts hard instead of what we actually subscribe to.

Oh, like anyone would believe Elephants are real. A creature with a giant tentacle in the middle of its FACE?! Come on.

It seems like you went out of your way to name drop the less popular animals etc and I appreciate this!

Last time I was this early, Gondwana was still in one piece

Consistently one of the best channels on all of YouTube. Fantastic bite-sized videos, great subject matter and great presentation. I rarely send money to YouTubers but I just love your Channel

Dear Aliens, on your next journey, could I hitch a ride? It isn't fun here anymore.

Great program, could easily be extended to an hour, so much information to absorb. Good graphics too, gets more realistic over time and the details of tectonic shifts are really well done. Great job, Alex! Since I was a child in the 60s I've wanted a time machine so I could scroll through earth's history just like this! Perhaps I was one of these alien scientists....?

I am also curious to know about the smaller creatures of this ancient past, such as small insects. I also feel like I am missing some information about how these first mammals came to be. I am curious to know more about it, and also the predictions of the movement of continents in the future. It's super interesting!

I think with the odd shaped creatures, you have to consider we largely do not know what a creature's soft body may have looked like. It's not my field directly, but I have been an animal artist my whole life, and odd skeletons like the dimetrodon are structural elements for very large and typically aquatic animals : see whale skeletons. While there are many complete skeletons of ancient animals, the vast majority are very incomplete. For instance we only have the jaw of that shark you were showing, if you look close at the graphic you use, its just a great white shark with the saw mouth superimposed. In the planetary videos you were always careful to mention when something was an artist's representation vs actual photo or scientific data,, which was very helpful for me to get a realistic understanding astronomy I feel like this other educational videos you should try and strive for the same. No shade, just a bit of my opinion!

This was a fun video. Please also do one about the (potential) future of the earth and it’s inhabitants.

Wonderful work, Alex! I wuld love to see more, most certainly!

Thanks for keeping the channel fascinating and interesting 🙏🏼

I love you creativity and production quality 😊 How about an extinction that might have happened when the earth was covered in ice? Did that compare to the one you mentioned here?

those alien siencists need to return as soon as possible so I can enjoy another video like this one! I need more, please. Great job as always :)

Loved this!! Please make this a series!!

Appreciate the great research job behind this video. Also the visual rendering is excellent. Well done! Greetings, Anthony

Totally loved this. Can't wait for the next part!

Dragonflies, and a lot of bugs, absorb oxygen through the surface of their body. So when oxygen levels got close to 40% they were able to support a much much larger body.

I cant wait for the part where they come back and humans are gone. Kinda sick of us tbh.