Remember those magical summer nights filled with tiny glowing lights? If you’ve noticed fewer fireflies (or lightning bugs) lately, you’re not alone—scientists have, too. The problem? We don’t have enough data to understand just how bad things are for these little luminescent wonders.

Ze Frank’s latest True Facts video dives into the decline of fireflies and what’s being done to protect them. Conservationists at the Xerces Society are working to track firefly populations, and thanks to new photography techniques and machine learning, identifying different species is getting easier. But they still need help—your help!

Want to contribute? You can submit firefly sightings to the Firefly Atlas or even get involved with photo-based tracking using simple equipment. And if you’d rather support from the sidelines, consider donating to help fund conservation efforts.

Because let’s be honest—summer nights just wouldn’t be the same without those twinkling little butts.