The PBS episode 20 from season 48, Butterfly Blueprints, is a must see for anyone with an interest in butterflies. You can watch it for free right now on the WTTW PBS website until February 9, 2022. Here is the PBS description of the episode and a link to view it:
The hidden scientific secrets of butterflies reveal them to be more inventive and resilient than we ever imagined. Follow their extraordinary life cycle and migrations to tropical rainforests, windswept prairies, and even inside a chrysalis as it’s being spun.
https://video.wttw.com/video/butterfly-blueprints-efgn0m/
Please let us know what you think of this episode in the comments below!