Neanderthal Ancestors in the Family Tree After All?

Previous genetic research has indicated that Homo sapiens sapiens (that's us, readers) and Neanderthal people (Homo sapiens neanderthalensis) had not interbred.

Now even newer research suggests that wait, maybe they did.

A genetic analysis of nearly 2,000 people from around the world indicates that such extinct species interbred with the ancestors of modern humans twice, leaving their genes within the DNA of people today.

Given our government's obsession with racial categories—witness the current census form—imagine where this might lead.