The Electric eel is named to be the biggest power-producing creature on Earth. These eels can release up to 860 volts. A research team from Nagoya University located In Japan found that electric eels can release enough electricity to genetically modify small fish larvae nearby in the area the electricity is dispersed. They were able to add on to what we already know about electroporation, which is a gene delivery technique. Electroporation allows to create temporary pores in a cell membrane which allows DNA or proteins enter the target cell. The research team had the thought id the electricity flows in a river, it would affect the cells of nearby organisms. To test this hypothesis, they exposed young fish in their labs to a DNA solution with a marker that would glow in the light to see if the fish (zebra fish) had taken the DNA. They introduce the eel that will discharge their electricity when it's bites a feeder fish, and from this they are able to see if that DNA goes to the zebra fish.
The experiment shows that 5% of the larvae had markers indicating gene transfer took affect. This indicates that the discharge from the eel promoted gene transfer. Many other studies have observed similar phenomenon's that involve naturally occurring fields such as lightning, affecting nematodes and soil bacteria.