Watch Bill Nye Teach Evolution—Using Emojis

What better way to celebrate World Emoji Day than with a video of Generation Y’s other favorite face—we’re talking Bill Nye, of course—using emojis to explain science?

In this video from Mashable, the Science Guy breaks down the evolutionary process, outlining how life on Earth began nearly four billion years ago. Accompanying his lesson: molecules comprised of yellow smiley faces. (Don’t worry, the dancing girls also make an appearance.)

Even if you’re not fluent in emoji, Nye’s speech serves as a fun, two-minute refresher on the mechanisms that made it possible for us to sit here today, browsing YouTube for cat videos and, naturally, sending emoji-filled texts to our pals.

[h/t Mashable]