In the 1940s in the US, a chicken called Mike lived for 18 months without a head
He had been almost completely beheaded with an axe, but crucially the jugular vein and most of the brainstem were left intact. This left just enough brain function for essential functions, like breathing, and Mike was fed with an eyedropper through the stump of his neck.
In the 1940s in the US, a chicken called Mike lived for 18 months without a head