A separate study found no support for a theory that a biomarker called C-reactive protein causes heart disease.

VOA: special.2009.07.15

The most interesting theory about the Lost Colony started with a rock found in nineteen thirty-seven.

VOA: special.2009.08.17

"When Darwin first proposed his theory in eighteen fifty-nine, he had no concept of a gene, no concept of a chromosome, no concept of mutation, and certainly no concept of things like DNA and RNA."

VOA: special.2009.12.01