Mind flayers (Monster Manual, p. 222) have the Extract Brain action:
Extract Brain. Melee Weapon Attack: +7 to hit, reach 5 ft., one incapacitated humanoid grappled by the mind flayer. Hit: The target takes 55 (10d10) piercing damage. If this damage reduces the target to 0 hit points, the mind flayer kills the target by extracting and devouring its brain.
If a mind flayer kills a creature with their Extract Brain action, will revivify return the creature to life as normal?