Cope's rule

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Notion

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Science and technology

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What Wikipedia says

Cope's rule, named after American paleontologist Edward Drinker Cope, postulates that population lineages tend to increase in body size over evolutionary time. It was never actually stated by Cope, although he favoured the occurrence of linear evolutionary trends.

Excerpt from the Wikipedia article “Cope's rule”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Nobu Tamura http://paleoexhibit.blogspot.com/ http://spinops.blogspot.com/ http://www.palaeocritti.com, CC BY-SA 3.0, via Wikimedia Commons.