Going to Extremes and Surviving Extremes are television programmes made for Channel 4 by Nick Middleton. In each episode of the two series, Middleton visits an extreme area of the world to find out how people have adapted to life there.

The first and last terms in the ratios of a proportion. Example: 4/10=16/40. 4 and 40 are the extremes.

drawings showing the beginning and the end positions of a action