Extinction

Long Ago there were dinosaurs who ruled the world
As time goes by the evolution of animals and humans unfurled,
The Asteroid from space annihilated every dinosaur that lived
early Humans started to adapt new changes during the Ice Age and relived
Cavemen and Cavewomen started to communicate by grunting,
When upset or in danger they started confronting
Wooly Mammoths, Sabre tooth tigers, Dodo Birds and other animals were extinct;
There were many causes that were linked
Weather, Environmental and other changes drove many prehistoric animals to their demise
Which that the prehistoric period of our history really applies.