Crows are believed to have evolved in central Asia and radiated out into North America, Africa, Europe, and Australia. The latest evidence regarding the crow's evolution indicates descent within the Australasian family Corvidae. However, the branch that would produce the modern groups such as jays, magpies and large predominantly black Corvus had left Australasia and were concentrated in Asia by the time the Corvus evolved. Corvus has since re-entered Australia (relatively recently) and produced five species with one recognized sub-species. | As a group, crows show remarkable examples of intelligence. Crows and ravens often score very highly on intelligence tests. Certain species top the avian IQ scale. Wild hooded crows in Israel have learned to use bread crumbs for bait-fishing. Crows will engage in a kind of mid-air jousting, or air-"chicken" to establish pecking order. Crows have been found to engage in feats such as sports, tool use, the ability to hide and store food across seasons, episodic-like memory, and the ability to use individual experience in predicting the behavior of environmental conspecifics. |
Info image: painting on ceramics prior to firing - early work in the 60s Info text: http://en.wikipedia.org/wiki/Crows |
Like the faience? You need to know MOUSTIER SAINTE-MARIE City of faience | and visit a workshop among the twenty | ||
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