Science
How Electric Fish Use Zeroed-out Zaps To Chat – Technology Networks
Electric fish generate electric pulses to communicate with other fish and sense their surroundings. The question of how these fish filter out their own pulses so they can identify external messages and only respond to those signals has long baffled scientists…

Electric fish generate electric pulses to communicate with other fish and sense their surroundings. Some species broadcast shorter electric pulses, while others send out long ones. But all that zip-zapping in the water can get confusing. The fish need to filter out their own pulses so they can identify external messages and only respond to those signals.
A solution to this problem is a brain function called a corollary discharge. It’s sort of like a negative copy of the original message — some…