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Porpoises

"Porpoises" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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Mammals of the family Phocoenidae comprising four genera found in the North Pacific Ocean and both sides of the North Atlantic Ocean and in various other seas. They differ from DOLPHINS in that porpoises have a blunt snout and a rather stocky body while dolphins have a beak-like snout and a slender, streamlined body. They usually travel in small groups. (From Walker's Mammals of the World, 5th ed, pp1003-4)


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This graph shows the total number of publications written about "Porpoises" by people in this website by year, and whether "Porpoises" was a major or minor topic of these publications.
Bar chart showing 4 publications over 4 distinct years, with a maximum of 1 publications in 2000 and 2001 and 2004 and 2006
To see the data from this visualization as text, click here.
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