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A Moment of Science

Posts tagged sibling

December 23, 2008


Hyena cub lying down

A Hyena’s Sibling Rivalry

If you grew up with a brother or sister, you probably know what sibling rivalry is like. For a spotted hyena, sibling rivalry is a matter of life and death.

September 27, 2003


Ride the Sperm Train

The female wood mouse has multiple mates, so the sperm of this wood mouse may be competing with sperm from other males.

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