Why Isn’t the World Covered In Poop? is the latest video lesson published by TED-Ed. With a title like that, how could you not be curious enough to spend five minutes watching the video? And that’s exactly what I just did.

Why Isn’t the World Covered In Poop? is really a lesson about dung beetles and the role that they play in the ecosystem. In the lesson students learn how many types of dung beetles exist in the world, where they exist, and how dung beetles help reduce greenhouse gasses. And as a bonus, you can pick up a cheesy middle school-appropriate joke from watching the video.

This TED-Ed lesson reminded me of one the most-pinned resources ever featured on FreeTech4Teachers.com. Who Pooped? is an interactive site in which students learn about various animals by guessing which animal created which pile of poop. Believe it or not, there is actually some good information about the animals that follows each round of guessing who created which poop. Cows are one of the that animals you can learn about on Who Pooped? (give the site some time to load in order to view all features).