How to Make a Megalopta Nest

Researchers used night goggles to monitor the nests and an infra red camera to film the bees comings and goings after sunset and before dawn. The results were as clear as day, but there in the dark, they weren't exactly easy to see. Even if we put a hand in front of our face, it's very difficult to see it. For scientific americansi 60 second science. I'm caren hopken,.