I was looking at a globe of the earth recently and it struck me that a lot of the land mass is contained in spirals.
Africa for instance desribes one with a curve from somewhere around the Congo up around its north shores, northern and eastern coastline to South Africa. That spiral is exactly like the one for the nautilus shell.
Australia is a butterfly and Australasia out to NewZealand up to the equator onto Indonesia is a spiral. And from Indonesia up into mainland Asia curving in around the coast of China is also a spiral.
Then I looked at Africa afgain and it 3/4 fills a perfect ellipse with its major axis running down the 10 degrees east parallel from Tunis out to see 37 degrees or so, north and south.
Its small axis runs along the equator from about 23 degrees west to 33 degrees east.
On a Mercator map it looks circular.
Antarctica forma a near perfect equidistant spiral. (That's the sort you'd get if you wrapped tape around a cone.)
Spirals are usually of equiangular or equidistant proportions. There's lots of stuff on here about them: