Sharks' Electrosensory Abilities
Sharks possess a unique sixth sense: electroreception. They can detect minute electrical fields generated by muscle contractions and heartbeats of prey, aiding in hunting.
Ampullae of Lorenzini Function
This electrosensory system is comprised of specialized pores called the Ampullae of Lorenzini, filled with conductive jelly and connected to nerve endings.
Hunting with Electric Fields
Sharks utilize electric fields to hunt in complete darkness or murky waters where vision is compromised, making them formidable predators.
Detecting Prey Underground
Beyond open water, sharks can detect prey hidden underneath sand or mud by sensing the bioelectrical signals emitted by them.
Sensitivity to Naval Mines
During World Wars, sharks were often found around naval mines due to their attraction to the electrical fields generated by the mines' corroding metal.
Navigating Earth's Magnetic Field
Sharks may use their electroreception to navigate by sensing the Earth's magnetic field, acting like a natural compass during long migrations.
Impact of Human Pollution
Electrical pollution from human activities can disrupt sharks' electroreception, causing confusion and affecting their ability to hunt and navigate.