Alistair Evans, an Australian biologist, made this discovery. The formula, called the “power cascade”, works with teeth and horns, antlers, and even spines.
As far back as the 17th century, there was discussion about the laws for the growth of shells and animals. It was then that Sir Christopher Wren hypothesised that the rigid body parts of various creatures obey mathematical laws. Alistair Evans completed Wren’s work, who analysed the structure of a vast number of animals’ teeth.
It turned out that the growth of conical protrusions of all kinds of shapes does obey a single law. Moreover, the rule works with both existing and long-extinct species. The Australian scientists’ main conclusion is that the rate of radial power growth is not equal to the rate of growth of power in length. This discovery makes it possible to determine animals’ age with high accuracy by their teeth’ shape.
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