As the Paleolithic period progressed, dwellings grew to become extra refined and extra elaborate; as early as 380 ka, people had been setting up short-term wooden huts. Clothing, adapted from the fur and hides of hunted animals, helped humanity broaden into colder regions; people started to migrateout of Africa by 200 ka and into different continents such as Eurasia. The discovery and use of fire, a easy energy supply with many profound uses, was a turning point in the technological evolution of humankind. The precise date of its discovery is not recognized; evidence of burnt animal bones at the Cradle…