Taylor Swift and Selena Gomez received a lesson in nature when the two hung out over the weekend. Pretty appropriate considering it’s the highly anticipated Shark Week!

The pop stars’ lesson involved a different kind of animal, though. (Can we nominate sharks for the next video? Maybe it can be a series.) Selena posted a photo on Instagram of boisterous coyotes howling at a very bright, full moon.

“What you are witnessing,” T. Swift explains in the vid, “actually hearing, is coyotes freaking out over a full moon.”

A fuzzy moon is center-screen, and there is some pretty loud howling in the background.

“I didn’t know that was a real thing,” Taylor continued. “I thought it was just a wolf thing.” The video ends with her narration dissolving into laughter.

Apparently Selena didn’t know it was a real thing either, because she captioned the video: “Guys, that happened in real life and not just in movies.”

Nature lesson aside, we’re happy to see these two are besties again! Their friendship hit a rocky point earlier this year, reportedly because of Sel’s then on-again relationship with Justin Bieber, but after her and Taylor's reunion at the Met Gala in May we’d hoped everything was patched up. They must be back at BFF status -- who else would you giggle over howling coyotes with if not your BFF?

PopCrushers, are you glad these two hugged and made up?

Speaking of Being Made Up, See Selena Gomez + More stars Without Makeup!