PHDID YOU KNOW? 
A Cockroach's brain is in its body
One of the ultimate survivors, the Cockroach, unlike most animals, can survive decapitation as its brain is not actually housed inside it, but rather inside of its body.
Once decapitated a Cockroach will keep on ticking, walking around, going about its business; eventually dying from starvation as it no longer has a mouth to eat with.
(s)thepeteexpress