Mike the Headless Chicken
May 05, 2012
“Mike the Headless Chicken, also known as Miracle Mike, lived for 18 months after his head had been mostly cut off.
On September 10, 1945, farmer Lloyd Olsen of Fruita, Colorado, United States, had his mother-in-law around for supper and was sent out to the yard by his wife to bring back a chicken. Olsen chose a five-and-a-half-month-old cockerel named Mike. The axe missed the jugular vein, leaving one ear and most of the brain stem intact.
Despite Olsen’s botched handiwork, Mike was still able to balance on a perch and walk clumsily; he even attempted to preen and crow, although he could do neither. After the bird did not die, a surprised Mr. Olsen decided to continue to care permanently for Mike, feeding him a mixture of milk and water via an eyedropper; he was also fed small grains of corn.
Post mortem: It was determined that the axe had missed the carotid artery and a clot had prevented Mike from bleeding to death. Although most of his head was severed, most of his brain stem and one ear were left on his body. Since basic functions (breathing, heart-rate, etc.) as well as most of a chicken’s reflex actions are controlled by the brain stem, Mike was able to remain quite healthy. This is a good example of central motor generators enabling basic homeostatic functions to be carried out in the absence of the cerebral cortex.”