Do any non-aquatic animals use electricity for hunting/defense (aside from us with tasers)?

Question

The seas and rivers are full of electric eels, rays, sharks and other fishes - do any terrestrial animals use shocks the same way?

Answer 1

no

Answer 2

no, but there is a reason. the density of water allows electricity to be discharged easier from one animal to another with very little effort (energy) on behalf of the shocking animal. the water acts as a conductor. in a dry environment with no conductor the energy that would be needed to shock another animal is beyond the capacity of an animals metabolism.

land animals have other cool adaptations from sensory organs that see infrared as in the pit viper, sonar in bats, and believe it or not, electromagnetic receptors in rays and the platypus

Answer 3

The echidna, a terrestrial relative of the platypus, might use electricity but not for administering shocks.  Both the short-beaked and the long-beaked echidna has some electro-receptors in their beaks.  If I remember correctly, its a matter of some hundreds in the first case and around a thousand in the second.  Long-beaked echidnas have a preference for living in moist mountain forests at height, and the ground is typically rather wet.  That could perhaps allow them to detect close movements near the surface.  As they're also generally nocturnal, it would be a useful ability.