To recreate, open http://podcastdownload.npr.org/anon.npr-podcasts/podcast/1/510307/385895405/npr_385895405.mp3
The final segment is a lullaby. It starts at the 56:17 or 56:32, depending on your device/app.
56:17
- iTunes desktop
- podcasts (iPad)
- overcast (iPhone)
- mobile safari (iPhone)
- safari desktop
56:32
- chrome desktop (raw mp3)
- firefox desktop (raw mp3)
- chrome desktop (via NPR.com/podcasts player http://www.npr.org/podcasts/510307/invisibilia)
I've confirmed this isn't an issue with at least one other episode of Invisibilia – though I noticed this episode's mp3 has a different URL structure than the one above. The example I'm refering to is: http://pd.npr.org/anon.npr-mp3/npr/specials/2015/01/20150109_specials_invisibiliapod.mp3