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 ...

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 ...

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 ...

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.