A study revealed why Deng Yuenagi jumps to the other party

The scene of "Homemade Ken fell horse" by a naturalist, Humboldt in 1800, has not been confirmed for more than 200 years, but recently researchers at Vantaa Building University reproduced this situation Then I confirmed the habit of the Dengi Wizards jumping to the enemy and found that the possibility that the anecdotes were true increased.

Leaping eels electrify threats, supporting Humboldt's account of a battle with horses
http://www.pnas.org/content/early/2016/06/01/1604009113

Actually, there are also movies that Denki eagle jumps to prey.

Electric Eels Make Leaping Attacks - YouTube


Denki eel is a fish known for living in South America · Amazon River and Orinoco River, causing powerful electricity.


Professor Kenneth Catania of Vanderbilt University who confirmed the habits of Dengi waki through experiments.


This time, Professor Catania found about the habit of Denki Wagi jumping to the prey as it jumps and flowing electricity.


Actually, this habit is a German naturalist who traveled South America in 1800Alexander von HumboldtAlthough it was confirmed, after that, it was not confirmed for over 200 years.


Humboldt wrote, "Denki eel comes out from the mud with the horse's feet popping out, two horses hit by eels shocked and knocked down."


Professor Catania conducted an experiment on how Deng Yuenagi will show move in the same situation. In addition, what is being used is the arm of the creation, as electricity passes through, the bulb inside is made to shine. When my arms are approaching, Deng Yuagi puts his face out of the water ... ...


Rather than "jumping", I crawled over my arms. At this time, electricity is already flowing.


In addition, Denki Wagi go up. Electricity is flowing around the elbow.


Judging that it caused a sufficient electric shock, Denki Waki ​​returned to the water.


Likewise, trying on the head of the crocodile's crocodile ......


Just like the arms of the creature, Denki Waki ​​stood on the head of the crocodile and ran the electricity.


It is like this when I make a schematic diagram. The body of the Dengi waki is like a battery, so to speak, it's so to speak that its power will decay considerably if it is in the water. So, we are going to discharge the object by pressing the jaw that corresponds to the + pole to the object, but at this time, the more the position of the jaw is away from the surface of the water, the more the effect will appear seriously, so it will jump over as far as possible as far as possible .

By K.C.Catania, Vanderbilt University

By the way, when Humboldt came across Denki Wagi, two horses were destroyed in 5 minutes and prepared for extinction, but damage did not spread because Deng Yuen got tired, Dengi waki was caught in a small harpoon easily and horses He also regained calmness. It is known in the field that the Dengi-euro after the discharge is tired, and at the time of capture it seems that the fishing method of using the fishery which deliberately discharges it and weakens it by tapping the water surface is used.