Progressive evolution  Spawns a hybrid breed  Through natural selection  Neanderthal conceived  Barreled chest and heavy limbed  Bony ridge atop his skull  Beetled brow, immensely strong  Bi-pedal locomotion  Ape man, short statured  Slouching dim wit brute  Homo erectus  Modern sub-species  Packing spears and heavy clubs  Stalking giant prey  Neanderthal attack  A migratory herd  Mammoth charges with malice  Tries to feast upon his death  Armed with a broken ranpike  Impale it's massive chest  Butcher with stone tools  Carcass of their prey  Savage intention  Carnivorous feast commence  (Lead Reilly)  Intruding hostile cave bear  Slay the vicious beast  Snare a wooly rhino in a  Camouflaged abyss  Massive haul of bones in tow  Retreating to his dank abode  Embossing his icy lair  With a skull and bone complex  Slaughter for pleasure  Instinctively possessed  Killing the symbol  Of his dominance  Skulls of fallen enemies  Crushed by scathing blows  Mastication of their flesh  Burn the bones for fuel  Human bone, cut, smashed and charred  Neanderthal has left his mark  Severed heads, disjointed limbs  Cannibalic butchery  Emerge, cro magnon  A higher form of life  Violent, fierce battle  Neanderthal's demise