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Electric eel skeleton, with the long vertebral column at top, the row of bony rays below. Electric eels have long, stout bodies, being somewhat cylindrical at the front but more flattened towards the tail end. E. electricus can reach 2 m (6 ft 7 in) in length, and 20 kg (44 lb) in weight. The mouth is at the front of the snout, and opens upwards.
Electrophorus electricus is the best-known species of electric eel.It is a South American electric fish.Until the discovery of two additional species in 2019, the genus was classified as the monotypic, with this species the only one in the genus. [2]
The electric discharge pattern of bluntnose knifefishes is similar to the low voltage electrolocative discharge of the electric eel. This is thought to be a form of bluffing Batesian mimicry of the powerfully protected electric eel. [28] Fish that prey on electrolocating fish may "eavesdrop" [29] on the discharges of their prey to detect them.
It closely resembles E. electricus but differs in skull morphology, including having a depressed skull and a wide head. It has a maximum voltage of 860 volts, making it not only the strongest bioelectricity generator of the three electric eel species, but also of any animal. [3]
Electric eel anatomy: first detail shows electric organs, made of stacks of electrocytes. Second detail shows an individual cell with ion channels and pumps through the cell membrane; A nerve cell's terminal buttons are releasing neurotransmitters to trigger electrical activity. Final detail shows coiled protein chains of an ion channel.
“The X-ray video of the eels circling in the stomach looking for a way out is particularly striking and shows that for some prey animals, the fight for survival doesn’t end after being eaten ...
“They’re eating the dogs. They’re eating the cats. They’re eating the pets of the people that live there,” the Republican nominee said.
This trial illustrates why eels need to track prey despite being able to inactive prey voluntary movement with the high-voltage discharge. Note also the eel's fast reversal to capture the prey during the high-voltage discharge. This latter behavior is common in weakly electric fish during electrosensory guided prey capture.