All terms in this list:

prehistory: The history of human culture prior to written records

hominid: Any primate of the family Hominidae.All the great apes (Humans, chimpanzees,bonobos,gorillas and orangutans).

ancestor: One from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a fore father.

tool: A mechanical device intended to make a task easier.

society: A group of people who meet from time to time to engage in a common interest; an association or organization

hunter-gatherer: A member of a group of people who live by hunting animals and gathering edible plants for their main food sources, and who do not keep animals or farm land.

migrate: To change one's geographic pattern of habitation.

ice age: Any of several cold periods in the history of the earth marked by episodes of extensive glaciation alternating with episodes of relative warmth

land bridge: in biogeographyan isthmus or other land connection between what at other times are separate land masses

domestication: The act of domesticating, or making a legal instrument recognized and enforceable in a jurisdiction foreign to the one in which the instrument was originally issued or created.

agriculture: The art or science of cultivating the ground, including the harvesting of crops, and the rearing and management of livestock; tillage; husbandry; farming.