Cartogram

http://www.google.com.pe/imgres?imgurl=http://freegeographytools.com/wp-content/uploads/2007/09/271c-thumb.png&imgrefurl=http://freegeographytools.com/2007/downloadable-cartograms-from-worldmapper&usg=__efaAyki799izbQRZEQdQHzCVKV8=&h=256&w=512&sz=139&hl=es&start=8&zoom=1&um=1&itbs=1&tbnid=1RFGOaeNGpcvMM:&tbnh=66&tbnw=131&prev=/images%3Fq%3DCartograms%26um%3D1%26hl%3Des%26tbs%3Disch:1

This is a cartogram of the world according to plant population. We can clearly see that the world is distorted in order to make each country proportional to the number of plant species it has.