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On the Origin of Species, the slowest breeder

Author: Charles Darwin Year: 1859 Length: 456 characters Difficulty: easy Public domain

A calculation carried through one long sentence, which trains punctuation and attention at the same time.

The elephant is reckoned to be the slowest breeder of all known animals, and I have taken some pains to estimate its probable minimum rate of natural increase: it will be under the mark to assume that it breeds when thirty years old, and goes on breeding till ninety years old, bringing forth three pair of young in this interval; if this be so, at the end of the fifth century there would be alive fifteen million elephants, descended from the first pair.

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About this text

Charles Darwin published On the Origin of Species on 24 November 1859, in a first printing of 1,250 copies. He worked on the argument for more than twenty years before printing it, and filled notebooks with breeding figures like these. The elephant calculation is his way of showing how fast even the slowest animals multiply. Project Gutenberg carries the full book.

About this text

Charles Darwin published On the Origin of Species on 24 November 1859, in a first printing of 1,250 copies. He worked on the argument for more than twenty years before printing it, and filled notebooks with breeding figures like these. The elephant calculation is his way of showing how fast even the slowest animals multiply. Project Gutenberg carries the full book.

What it trains

A calculation carried through one long sentence, which trains punctuation and attention at the same time.

Public domain

Copyright has expired or never applied, so anyone can copy the text and use it further.

Source: domena publiczna, Project Gutenberg

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