Stingless Bees Guard Tasty Honey With Barricades, Bouncers and Bites | Deep Look

From a channel Lumen includes in full: Deep Look, from KQED and PBS Digital Studios, uses ultra-close macro filming to explain the biology of insects, animals and plants, with scripts checked with the researchers who study them.

A 6-minute video from Deep Look's catalogue; the title names its topic.

Video by Deep Look, played through YouTube's embedded player.