yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

TIL: Dinosaurs May Have Danced Like Birds | Today I Learned


less than 1m read
·Nov 11, 2024

[Music] I think one of the most exciting things that people don't really realize is that birds are living dinosaurs.

And dinosaurs giving rise to birds probably did the same thing that birds [Music] do. Virtually all birds use their feathers for display.

You think about a Triceratops; I mean, they had this huge, uh, fan basically on the back of their head. There's no evidence that Triceratops used its horns for any kind of aggressive behavior because, as they got bigger and bigger, their horns became hollow, and their shields became very thin. They were probably all for display, and because they're displaying very much like birds, more than likely, dinosaurs danced like [Music] birds.

Kind of dances that you might imagine with dinosaurs would be spectacular looking, and it would be spectacular motion.

It's all speculation trying to figure out how they're going to display, but that's pretty cool.

If you look at the brain, it looks like multiple Grand Canyons. If you look at a mouse brain, you don't see that; it's very smooth. The outer mantle of the brain, the cortex, is very smooth in a mouse, but we have all these grooves and valleys in a human brain.

More Articles

View All
Conditions for inference on slope | More on regression | AP Statistics | Khan Academy
[Instructor] In a previous video, we began to think about how we can use a regression line and, in particular, the slope of a regression line based on sample data. How we can use that in order to make inference about the slope of the true population regre…
Charlie Munger: 100 Years of Wisdom Summed up in 20 Minutes
And I’ve catalogued the inanities on structures in my head, and it’s been a wonderful thing to do. If you stop to think about it, how many unhappy collectors do you know? Whether they collect silver, or mistresses, or you know… I thought I would speak ton…
Homeroom with Sal & Nikole Hannah-Jones - Thursday, July 30
Hi, everyone, Sal here from Khan Academy. Welcome to our Homeroom live stream. I’m very, very excited about our conversation that I’m about to have with Nikole Hannah-Jones. But before we jump into the conversation, I wanna give my standard announcements …
The 2022 Recession: How To Prepare For The Next Market Crash
So over the past few years, we’ve been through a lot of hardship. No doubt it’s been pretty tough, so tough that the Federal Reserve has stepped in to wind up that money printer to help individuals and businesses get through such an uncertain and interrup…
Exponential functions differentiation | Advanced derivatives | AP Calculus AB | Khan Academy
Let’s say that Y is equal to 7⁄2 the x squared minus X power. What is the derivative of Y, derivative of Y with respect to X? And like always, pause this video and see if you can figure it out. Well, based on how this has been color-coded ahead of time, …
How To Make Galinstan
Let’s make some Gallon Stan. Unlike Mercury, Gallon Stan is not toxic, and it’s a liquid at room temperature. Unlike Gallium, which is solid up until about 30 Celsius, you have to hold this for a while before it starts getting drippy. No, no, no, you dese…