T-rex

He's been called the greatest fossil collector who ever lived - and he was born 153 years ago this week in the small town of Carbondale, Kansas. Sometimes referred to as "Mr. Bones," his real name was Barnum Brown. Commentator Katie Keckeisen has his story.

You can find just about anything on eBay, including now a Tyrannosaurus rex fossil listed for almost $3 million. The online sale drew an outcry on...