Fishes
Fishes are a diverse group of backboned animals and represent an informal collection of animals, not a true taxanomic class. For the purposes of this website, we recognize four groups of fishes including hagfish, lampreys, cartilaginous fishes and bony fishes. There are more than 24,000 species of fishes alive today. The articles listed below provide information about the characteristics, classification and evolution of fishes.
What Are Fishes?
Fishes include hagfishes, lampreys, lobe-finned fishes, cartilaginous fishes and ray-finned fishes. In this article, we'll explore basic facts about fishes including how they are classified, what they eat, where they live and the characteristics that make them different from other animal groups.
Facts About Fishes
Learn interesting facts about fishes and find out about the characteristics make them different from other animal groups, their life cycle and their evolutionary history.
The Basic Fish Groups
The different types of fishes are classified into 4 groups including bony fishes, cartilaginous fishes, hagfish and lampreys. In this article, we'll explore fish classification in order to better understand the many different types of fishes.