Stickleback females, like most female fish, lay unfertilized eggs that males then fertilize in the nest. But Mary, somehow, got pregnant with healthy live young, which survived delivery via C-section.

Humble fish While Schluter launched his scientific career with the famed Galapagos finches, he turned to the humble stickleback fish to further test his ideas.

After the museum processes its newest donation, the collection will include half a million skeletons of three-spined stickleback fish alone. Now, the Harvard Ichthyology collection at the MCZ is ...

These fish came from marine ancestors 12,000 years ago, and they did not have fibrosis. This trait evolved over time when the fish were introduced to tapeworms in freshwater lakes. But not all ...

So threespine stickleback fish evolved resistance to tapeworms — but resistance has costs of its own, a team of researchers show in an article published in Science Thursday. When threespine ...

Advanced Inquiry Program (AIP) graduate Bonnie May '23 of Oceanside, California, asks us to consider the three-spined stickleback fish when restoring ecosystems. In her article, which appears in the ...

In Big Bear Valley, burros pose the greatest threat to such rare and endangered species as Big Bear checkerbloom flowers, slender-petaled mustard plants, and the unarmored threespine stickleback fish.

Brook stickleback, Culaea inconstans, is a small fish that grows to 2½ inches long and lives in cool, calm waters of lakes, ponds, sluggish stream, wetlands and bogs. It’s been on the candidate ...

Humble fish While Schluter launched his scientific career with the famed Galapagos finches, he turned to the humble stickleback fish to further test his ideas.