This is The Eagleman Stag, a BAFTA-award-winning stop-motion animated short by director Mikey Please. It's about an entomologist who discovers a unique insect with an anatomy that can alter human consciousness in incredible ways. Here's a synopsis:
If you repeat the word 'fly' for long enough it sounds like you're saying 'life.' This is of no help to Peter. His answers lie in the brain of a beetle.
You can take a look at the meticulous detail that went into this film here. You have time to fit this into your schedule. Hat tip to Precious Roy.