Are you into animals?  Do you like fish?
Several varieties are recognized by Japan.
What do you mean?  Kinds of fish?  Like koi fish?
They come in many colors such as white, black, red, and blue.
What kinds of things do they eat?  Can they live in saltwater?
Carp's ability to survive and adapt to many water conditions allowed them to travel to Japan.
So, what I'm gathering is that koi fish are descendants of carp?  How are they similar?
Carp were originally bred for color mutations in China.
So Koi are like Japanese Carp.
group of fish originally found in Central Europe and Asia. Various carp species were originally domesticated in East Asia, where they were used as food fish. Carp are coldwater fish, and their ability to survive and adapt to many climates and water conditions allowed the domesticated species to be propagated to many new locations, including Japan. Natural color mutations of these carp would have occurred across all populations. Carp were first bred for color mutations in China more than a thousand years ago, where selective breeding of the Prussian carp ("
appeared in water; nearly all fish live exclusively in water, and there are many types of marine mammals, such as dolphins and whales. Some kinds of animals, such as amphibians, spend portions of their lives in water and portions on land. Plants such as kelp and algae grow in the water and are the basis for some underwater ecosystems. Plankton is generally the foundation of the ocean food chain.
Aquatic vertebrates must obtain oxygen to survive, and they do so in various ways. Fish have gills instead of