Ah yes, I heard about that one when I was a kid, forgot to mention it.

Damn headless chicken stayed alive for weeks… months I think?

It would walk around attempting to peck at things with a head it didn’t have… they used a little dropper to squirt some mushed up food … directly into its throat…

…and it actually died because one day it choked during this kind of feeding session, concievably it could have lived longer had that not happened.