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The unusual high brain energy consumption percentage of mormyrinae fish is thus due to them having the unusual combination of a large brain in a low energy consuming body. [1] The actual energy consumption per unit mass of its brain is not in fact particularly high and indeed lower (2.02 mg g 1 h 1 ) than that in some other fish such as ...
The Mormyridae, sometimes called "elephantfish" (more properly freshwater elephantfish), are a superfamily of weakly electric fish in the order Osteoglossiformes native to Africa. [1] It is by far the largest family in the order, with around 200 species. Members of the family can be popular, if challenging, aquarium species.
The brain of this superfamily is one of the largest among fishes and has a body-proportional size comparable to that of humans, [31] with a brain-to-body mass ratio ranging from 1/52 to 1/82, and possibly associated with the ability to interpret bioelectrical signals. [32]
Petrocephalus sullivani is a species of electric fish in the family Mormyridae, ... The fish is named in honor of colleague and friend John P. Sullivan (b. 1965), of ...
Active electrolocation is practised by two groups of weakly electric fish, the Gymnotiformes (knifefishes) and the Mormyridae (elephantfishes), and by Gymnarchus niloticus, the African knifefish. An electric fish generates an electric field using an electric organ, modified from muscles in its tail. The field is called weak if it is only enough ...
In addition to the regular fish portions, Fraser also takes a whopping 4000-5000 IUs of vitamin D per day — more than five times the daily recommended dose for his age group (800 IU).
Bronze figurine of Oxyrhynchus fish, Late Period-Ptolemaic Egypt The Medjed was a sacred fish in Ancient Egypt. At the city of Per-Medjed, better known as Oxyrhynchus, whose name means "sharp-nosed" after the fish, archaeologists have found fishes depicted as bronze figurines, mural paintings, or wooden coffins in the shape of fishes with downturned snouts, with horned sun-disc crowns like ...
Mormyrus longirostris, commonly referred as the eastern bottle-nosed mormyrid, is a medium-sized ray-finned fish species belonging to the family Mormyridae.It was originally described by Wilhelm Peters in Monatsberichte der Akad. Wiss. Berlin, 1852.