Learn about the average lifespan of betta fish and how to help your betta fish live longer.

Re-examination of Manitoba fossil leads to naming of new genus of placoderm fish by Melina Jobbins, University of Manitoba edited by Lisa Lock, reviewed by Robert Egan Editors' notes ...

A fish can have three different locations for its mouth: It can be terminal (located at the end of the head), inferior (opening downwards), or superior (opening upwards). These seemingly simple ...

They found that some of these fish, all of which were subadults, would occasionally attempt to or accidentally swallow belemnites (squid-like cephalopods), leading to the Tharsis choking to death.

Before you get a fish, there are some things you should know and steps you can take to prepare for your new pet.

A beloved pet Siamese fighting fish, also known as a betta fish, was stolen from a restaurant in Satellite Beach.

A new species of critically endangered betta fish, or fighting fish, was discovered in a single peat swamp in Jambi, Sumatra, next to an oil palm plantation.

Maintenance Betta fish tanks may be small, but ensuring that your pet remains in good health still requires keeping up with cleaning, feeding and monitoring pH levels.

The nest matters: reproductive state influences decision-making and behavioural consistency to conflicting stimuli in male Siamese fighting fish, Betta splendens ...

Betta fish are one of the most popular aquarium fish in the world. Here is what to know about bettas, including how long they live.

Betta fish usually cost around $5 to $30 dollars on average. Rarer species can cost more. Bettas or Siamese fighter fish have been kept as pets for over 100 years. They are colorful yet aggressive ...