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News Release 08-177
Fitness in a Changing World
The genetics and adaptations of the Alaskan stickleback fish
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![Illustration showing that different genes in different stickleback fish result in different fitness.](/news/mmg/media/images/stickleback1_f1.jpg)
Different genes code for two different forms of stickleback fish and result in different fitness.
Credit: Zina Deretsky, National Science Foundation
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![Cover of this week's issue of Science magazine.](/news/mmg/media/images/stickleback2_f.jpg)
Research on genetics of Alaskan stickleback was published in this week's issue of Science magazine.
Credit: Copyright 2008 AAAS
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