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There are two sides of the brain. The left side differentiates data, while the right side of the brain integrates the same data. Like in math differentiation finds the slope of a curve at a given point; specific. While integration finds the area under the curve; generality.
Gary Larson cartoon strips always have cavemen named Thak or Og. It got me to wondering- did cavemen have names? When did people start using names?Asked by Kat Find out more on our podcast page
Some animal species have unique callsigns which are used by other members of their species to get their attention. Parrots spring to mind.