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.

A stickleback fish has had a 'virgin birth' after fertilising its own eggs internally in a world first, scientists have revealed after they found it was unable to expel them in north-west Scotland.

The stickleback fish, Gasterosteus aculeatus, is one of the most thoroughly studied organisms in the wild, and has been a particularly useful model for understanding variation in physiology ...

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.

Some stickleback fish fathers can have long-term effects on the behavior of their offspring, researchers report. The most attentive fish dads cause their offspring to behave in a way that makes ...

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 ...

It's not just we humans who value consensus: A new study has shown that stickleback fish make better decisions when acting as a group than they do as individuals. Researchers set up a clever ...

It’s got a Dr. Seuss name and a prehistoric appearance, but the threespine stickleback of Lake Washington is opening new frontiers of scientific understanding about how animals adapt to rapid ...

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.