Why does sex exist? You might think the obvious answer is “reproduction” but there are plenty of organisms on Earth that don’t require sex to reproduce. And the more that scientists examined sex, they more they realized that it’s an...

Paul Andersen explains how life has evolved and continues to evolve today. A brief discussion of artificial, natural and sexual selection is included. The beak of the finch is used to explain how directional selection is achieved.

Hank gets into why sex is the preferred method of reproduction for most species - and it's not for the reasons you're thinking.

Howcast - Carroms is a game similar to billiards but is played on a plywood board using wooden pucks called carroms. Players use a striker to push their carroms into pockets at the board's corners before their opponents sink theirs.