Which Came First?

generic skull dinosaur t-rex Tyrannosaurus
This column was written by CBS News Early Show co-anchor Harry Smith.
I know I'm going to have nightmares about this. Did you hear how scientists have found a connection between chickens and the T-Rex? Examining some old T-Rex bones dug up in Montana, researchers realized that not quite everything had been fossilized.

There was a bit of stuff, probably some tendon that had not completely turned to stone. So they examined it, and it turns out the Tyrannosaurus Rex, yes the fabled terrible lizard that roamed the earth some 60 million years ago — the very same one that terrified us all in "Jurassic Park" — is related to the chicken. They're cousins — sort of.

We've known for a while that lizards and birds come out of the same stuff. And when you think about a T-Rex on two legs and a chicken on two legs strutting about, you can sort of see the connection.

But what if deep down there is a T-Rex inside of every chicken? And what if they're mad?

Harry's daily commentary can be heard on many CBS Radio News affiliates across the country.

By Harry Smith