Figures and Tables

From the following article:

Quantifying the evolutionary dynamics of language

Erez Lieberman, Jean-Baptiste Michel, Joe Jackson, Tina Tang & Martin A. Nowak

Nature 449, 713-716(11 October 2007)

doi:10.1038/nature06137

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Figure 1

Irregular verbs regularize at a rate that is inversely proportional to the square root of their usage frequency.

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Figure 2

Irregular verbs decay exponentially over time.

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Figure 3

Extrapolating forward and backward in time using the observation that regularization rate scales as the square root of frequency.

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Table 1 - Unfortunately we are unable to provide accessible alternative text for this. If you require assistance to access this image, or to obtain a text description, please contact npg@nature.com

Table 1

The 177 irregular verbs studied

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