These beetles breathe out of their butts & we had questions

From a channel Lumen includes in full: The Brain Scoop is Emily Graslie's natural-history channel, begun at Chicago's Field Museum, explaining specimens, dissections, fossils and the work of museum scientists.

A 7-minute video from thebrainscoop's catalogue; the title names its topic.

Video by thebrainscoop, played through YouTube's embedded player.