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shark
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Shark

Scientists assert that asexual reproduction in the wild is rare, and probably a last ditch effort to reproduce when a mate is not present. Asexual reproduction diminishes genetic diversity, which helps build defenses against threats to the species. Species that rely solely on it risk extinction. Asexual reproduction may have contributed to the blue shark's decline off the Irish coast.
Brooding
Sharks display three ways to bear their young, varying by species, oviparity, viviparity and ovoviviparity.

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Filename:327872.jpg
Album name:Fauna & Flora
Rating (1 votes):55555
Keywords:#shark
Filesize:37 KiB
Date added:Oct 19, 2010
Dimensions:700 x 436 pixels
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URL:displayimage.php?pid=327872
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