How electric fish were able to evolve electric organs

Electric organs help electric fish, such as the electric eel, do all sorts of amazing things: They send and receive signals that are akin to bird songs, helping them to recognize other electric fish by species, sex and even ...

Electric eels make leaping attacks

In a legendary account the famous 19th century explorer and naturalist Alexander von Humboldt recounted a dramatic battle between horses and electric eels that he witnessed on a field trip to the Amazon. In the following ...

Smallest eel-loach fish discovered

(PhysOrg.com) -- The world's smallest species of eel-loach fish has been discovered by a Natural History Museum scientist and his colleague this month and is featured on the Museum's Species of the day today.

Evolutionary constraints revealed in diversity of fish skulls

In the aquatic environment, suction feeding is far more common than biting as a way to capture prey. A new study shows that the evolution of biting behavior in eels led to a remarkable diversification of skull shapes, indicating ...

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Eel

Anguilloidei Congroidei Nemichthyoidei Synaphobranchoidei

Eels (Anguilliformes; pronounced /æŋˌɡwɪlɨˈfɔrmiːz/) are an order of fish, which consists of four suborders, 20 families, 111 genera and approximately 800 species. Most eels are predators. The term "eel" is also used for some other similarly shaped fish, such as electric eels and spiny eels, but these are not members of the Anguilliformes order.

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