You want to know why America is really divided? Follow the science.

The “Right Angle” team of Scott Ott, Bill Whittle and Stephen Green dissect a Washington Post article by Joel Auchenbach and a subsequent interview of the author by “Think,” a public radio program, in which he revealed, among other factors, that political divisions are being sparked by a steady rise of tribalism and that “policy preferences are increasingly likely to be entangled with a visceral dislike of the opposition.”

The “Right Angle” crew shares their thoughts, including Auchenbach’s premise of how evolutionary psychology plays a role into the division.