Fish
Explore classification, origins, appearance, behavior, observation and care through the published animal profiles for fish.
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Published animal profiles
Goldfish
Distinguishing wild-type forms and domestic goldfish varieties. Goldfish are freshwater fish whose varied colors and builds arose through long husbandry and selection of East Asian crucian carp relatives.
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Guppy
A guppy with marked differences between sexes and captive lines. The guppy is a small fish originating in freshwater in northern South America and nearby areas.
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Clownfish (Nemo)
A representative clownfish species associated with sea anemones. Clownfish comprise several species; here Amphiprion ocellaris is used as the representative.
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Whale Shark
A giant whale shark filtering small food. Despite whale in its name, the whale shark is a gill-breathing shark, not a mammal.
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