Find out what you need to know about swordtails, and discover this beginner-friendly fish's care requirements and characteristics.

New research on swordtail fish suggests male courtships displays aren't always just for appealing to the ladies, but for showing off and scaring away other males too.

In some swordtail species, the males are all “courters,” using their swordtail and showy movements to convince females to permit mating.

We have all seen a peacock show its extravagant, colorful tail feathers in courtship of a peahen. Now, a group of researchers has used a special camera to discover that female northern swordtail ...

New camera sheds light on mate choice of swordtail fish We have all seen a peacock show its extravagant, colorful tail feathers in courtship of a peahen. Now, a group of researchers have used a ...

Rosenthal notes that swordtail fish are considered an important model system in animal communication and are widely used in female mate-choice research.

For female swordtails, size does matter In the fishbowl version of a pickup joint, the mere sight of a well-endowed male swordtail causes genes to switch off in the female's brain.

After dogs and cats, fish are the most popular pets in Britain. There are 150 million of them in the UK. Here are the top 40.

Vriesa splendens commonly called Swordtail or Flaming Sword comes from the bromeliad family and originated from Venezuela and the Guianas where it grows in trees in the rainforest. It was later ...