AZ Animals on MSN

How working ranches keep open land and wildlife habitat intact

Large, open ranches are often the last wide-open spaces left between growing towns and expanding highway networks. Across ...
MutualArt.com

Dorothy Doughty

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Nature

Segmental patterning of the vertebrate embryonic axis

Segmentation of the vertebrate body is first established during embryogenesis by the periodic formation of pairs of somites — for example, every 120 minutes in mouse, 90 minutes in chicken and 30 ...
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Bob Sopchick

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