Threespine Stickleback
Gasterosteus aculeatus
![](https://therouge.org/wp-content/uploads/2020/04/Threespine-stickleback-cr.jpg)
Threespine Stickleback Distribution
![](https://therouge.org/wp-content/uploads/2020/04/Threespine-Stickleback.jpg)
black dots = sampling sites; red blocks = species present
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