What is hippopotanic?

Are known to make and use simple tools? Are gnomes old leprechauns? Who was leader in the group in ice age? Which archetype does Piney represent? What is Origin of petroleum? What does premanation mean? Why did people and animals migrate to America during the ice age? Is it possible to separate prehistoric periods exactly? What did aztec's feed their gods? How did australopithecus look like? Has the use of fossil fuels changed over time? How does fossils contribute with Darwin's theory? Why do they call kiowa nomads? Did they have chicken in the stone age? What are cave structures that grow from the ground up? What role does petrification play in mythology? What would you find at Lascaux? Why does Odysseus men eat Helios cattle? When did moose come to Isle Royale? Why did People did not live in caves in the paleolithic age because?