Introduction
Our senses aid our survival and feed us critical information about our environment.
Human perceive their world with five senses of touch, taste, smell, hearing, and sight.
Some animals use additional senses, one of which is the sense of electricity.
Animals + Electricity ?!
+ 
?! All animals emit weak electrical charges, via their muscles, just by moving, but electric animals also have special electric organs.
Some emit strong charges, some sense the charges, and some do both.
Because electricity is easily conducted in water, most electric animals are fish.
They use electrical signals to protect themselves, attract mates, find prey, and navigate.
Many of electric animals emit charges from electric organs in their bodies.
They are also electroreceptive and can detect electricfields.
The weak electric signal from each species of electric fish is specific, allowing it to distinguish its own species from another.