The swordtail is a beginner-friendly tropical fish ... has a large, sail-like dorsal fin that it raises to intimidate potential competitors during courtship rituals. The common green swordtail ...

New research on swordtail ... fish against video animations of males. Fisher varied the video-version of the fish by body size, coloration and dorsal fin size. "I assumed they would prefer the ...

When it comes to mating, dominant green swordtail fish let their tails do the talking. Female green swordtail fish mature faster sexually when they see males with larger-than-usual tails ...

Yes, that’s exactly how it sounds: The scientists essentially shot, edited, and screened fish porn to see what got females of the species all hot and bothered. In the green swordtails ...

In the new study, the researchers found that female swordtail fish are attracted to certain patterns, called polarization ornaments, visible in polarized light in large male swordtail fish.

It's the look of love--when female green swordtail fish see attractive adult males, they mature faster sexually, researchers now find. On the other hand, scientists discovered when young male ...

There’s hope for the less-than-perfect male – if you’re a swordtail fish, that is ... A population with a large amount of asymmetrical individuals may have been subject to a lot of ...

Now, working with populations of swordtail fish, Stanford researchers have discovered ... there are a lot of interesting questions about why this big molecule [Complex I] doesn't work that we ...

A new study published in the Proceedings of the National Academy of Sciences this week shows that the melanoma gene can be conserved in swordtail fish because of its beneficial role in sexual ...

New studies show that swordtail fish have evolved a clever solution ... Twice as likely! That's a big finding. Put a Mexican tetra in the middle tank--that's a predator who snacks on swordtails ...