Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Curiosity.com.

I'm Ashley Hamer.

And I'm Natalia Reagan.

Today you'll learn about why we now know what a dinosaur's cloaker looks like. You'll also learn

why smells change with context from food science expert Harold McGee.

Let's satisfy some curiosity. For the first time ever, researchers have discovered the fossilized rear end of a dinosaur that leaves nothing to the imagination.

And I mean nothing.

We're not talking bones.

They found the fossilized remains of the soft tissues.

And it turns out that this dinosaur sported a pretty efficient backside.

The species in question is called

Sotocosaurus, more like Sotucosaurus if you know what I mean. It was

related to Triceratops but it had a look all of its own. These beauties

were the size of a yellow lab. They walked on two legs, and they had a face like a

turtle, with a horn on each cheek. Their tails were adorned with a tuft of long feather-like bristles and now we know way too much about what was going on under that tail.

Specifically these researchers found the fossilized remains of the Dinos cloaca.

That's an all-purpose opening used for both

waste and reproduction. A lot of paleontologists already suspected that dinosaurs

had a clowaca. That's because birds, dinosaurs, and alligators,

dinosaurs closest living relatives, have them too.

The big news is that we have hard evidence

for this soft orifice.

...