Choosing a fish as a pet opens the door to a captivating underwater world. However, the decision between freshwater fish and saltwater fish involves more than just their aquatic environment.

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

While dogs, cats and freshwater fish are the most popular pets — 122.7 million U.S. households have ... From bearded dragons to blue-tongued skinks, we've compiled a list of the best lizard pets that ...