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It's Thursday, April 7th, 2022.

I'm Jackson Bird today. An impressively well-preserved dinosaur-leg fossil has been found that could be the first ever fossil evidence of the asteroid

impact that killed the dinosaurs. But is it all it's cracked up to be? Plus, Amtrak is stirring

up some beef with their Twitch streams and a new dream job opening, counting penguins in Antarctica. Here's some cool stuff for your ride home.

Paleontologists working at the Tannis fossil site in North Dakota say they've found a remarkably

well-preserved dinosaur leg, scales and all, that could be the first ever

specimen found that was killed by the asteroid that eradicated all of the dinosaurs.

This sounds incredible, almost too good to be true. And maybe it is. There is some skepticism

about the claim, stemming in part from past skepticism about the team who found it, and the find is also featured in an upcoming Sir David Attenborough documentary called Dinosaurs the Final Day.

So despite this find not yet having been peer reviewed, it seems to be making early press rounds for that show,

which will be broadcast on the BBC on April 15th. I'll get into the skepticism more in a moment,

but this is pretty fascinating, so bearing all potential biases in mind, let's first talk

about what the team at Tannis claims to have found. Quoting live science.

According to Paul Barrett, a merit researcher at London's Natural History Museum,

the leg belongs to Theselosaurus, a herbivorous dinosaur whose name means

...