This episode is brought to you by K-12-powered schools, tuition-free online accredited public schools for kindergarten through 12th grade.

Go to k-12.com slash IKD to find a tuition-free K-12-powered school near you and enroll now.

Music now.

Hello and welcome to I know Dino.

I'm Garrett.

And I'm Sabrina.

And today we'll be talking about Koryithosaurus and a lot of dinosaur news.

So first in the news is an article that comes out of biology letters by Carl T. Bates and others titled,

Downsizing a Giant, re-evaluating Dreadnoughtus's body mass.

So we've heard from paleontologists in the past that dinosaur discoveries often follow a trajectory of maybe the biggest ever to maybe not as big as we thought, but still huge.

And then ultimately, well, it's similar in size to some other huge dinosaurs,

which in my opinion is largely due to the hype of a new discovery.

Everyone always gets very excited. And then they give an initial range of, you know,

smallest possible weight, smallest likely weight, up to the highest likely weight. And most

people remember the number on the high end. So then when it narrows in

on a more likely weight, everybody thinks of it is shrinking. But usually it's kind of in that

original range. So it appeared a little bit less likely in the case of Dreadnoughtus because they had

both the femur and the humorous, which can be used to get a good indication of a dinosaur's mass.

And they also discovered a large number of bones in the tail, a couple in the neck and some

ribs that gave a better estimate for its size. Sometimes they try to base all of the weight on one

bone, and that always brings up more skepticism than if you have a more complete skeleton.

But in this paper, Bates and his co-authors specifically take issue with the scaling equation

...