These little creatures are said to have small bodies with oversized pointy ears, Gremlins look similar to miniature gargoyles.
Gremlins are known to hide from people so they can watch and listen, this helps them know when it is best to interfere, which are usually harmless pranks such as hiding an object.
They love to watch people get frustrated and panic as they look for misplaced items. These sneaky little creatures are rarely seen however they cause faults in electrical items on purpose.
This creature may have come from the British Air Force because when something was faulty with their aeroplaines that they couldn't find the cause or found chewed wires, they would blame the gremlins.