This large order of freshwater fish includes minnows, carps, loaches, and goldfish. With more than 4,250 species across 10–11 families, they are found around the world—especially in rivers, lakes, and streams throughout North America, Europe, Asia, and parts of Africa.

Most members of this group are small to medium in size, though some—like carp—can grow quite large. One of their most distinctive features is the absence of teeth in their jaws. Instead, they have strong pharyngeal teeth (located in the throat), which they use to crush and grind food such as plants, insects, and small animals.

Cypriniformes typically have smooth scales, a single dorsal (back) fin, and a streamlined body that allows them to move efficiently through the water. Many species play an important role in their ecosystems as a key food source for larger animals, while others—like goldfish and koi—are well known as popular pets.

Highly adaptable, these fish can thrive in a wide range of habitats, from fast-flowing streams to still ponds. This flexibility helps make Cypriniformes one of the most diverse and widespread groups of freshwater fish in the world.