Image:Dog and human year graph.png

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[edit] Summary

Graph of dog age to human age. There is no single authoritative and generally agreed graph, but this should be close.

Data for ages 5 and higher is taken from Table on dogpack.com, said to be "based on a chart developed by Fred L. Metzger, DVM, Dipl. ABVP; State College, PA".

Data for ages 0-2 is taken from numerous sources that cite equivalent ages for 1 and 2 year old dogs (other than giant breeds).

Data for giant breeds under 2 is the same data, but reduced slightly to allow for reports in many websites that such breeds mature more slowly

Data for ages 2 - 5 is simple linear interpolation, as most sites agree a linear model is valid even if they disagree on the exact ratio of years to be used.

Breaks at 2 and 5 years mark the above for completeness. The standard for human survival is not disclosed but appears to assume a human lifespan of around 77 - 80 years as its comparative.

[edit] Licensing

I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible,

I grant any entity the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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	Date/Time	Dimensions	User	Comment
current	04:34, 23 February 2007	670×531 (23 KB)	FT2 (Talk \| contribs)	(== Summary == Graph of dog age to human age. There is no single authoritative and generally agreed graph, but this should be close. :* Data for ages 5 and higher is taken from [http://www.dogpack.com/misc/dogyears.htm Table on dogpack.com], said to be )
	04:19, 23 February 2007	670×531 (23 KB)	FT2 (Talk \| contribs)	(Graph of dog age to human age. There is no single authoritative and generally agreed graph, but this should be close. Data for ages 5 and higher is taken from [http://www.dogpack.com/misc/dogyears.htm Table on dogpack.com], said to be ''"based on a cha)