Dr. Steven Novella

The oldest evidence for sexual reproduction in animals.

Chordates include vertebrates.

There were no vertebrates in the EDA calendar.

Yeah, so it's, you know, an assemblage of fossils.

I mean, you find a location that dates to the Ediacarian period and has a bunch of well-preserved fossils in it.

And so we get a glimpse into that age and looking at those fossils like, oh, look, these are not all dead groups.

There are bilaterians here.

And there's the evolution of sexual reproduction here.

Yeah, so this is now a different fossil.

This is in China versus Canada.

Okay, Bob.

I like everything Kara said.

I'm going to go with her.

Oh, God.

Okay, so you guys all agree on the third one, so we'll take this in order.

Number one, paleontologists report an assemblage of Ediacaran fossils from Canada, once thought to be a failed pre-Cambrian offshoot.

That includes the oldest bilaterian animal and the oldest evidence for sexual reproduction in animals.

You guys all think this one is science, and this one is...

Science.

This one is science.