Changing squid skin color with cypress hill music

Just nitpicking:

> Since this is the same electrical current that neurons use to communicate [...]

The neurons change the polarization of the membrane to transmit communication, but in an electric wire the electrons travel (very slowly). I think that they are very different, and I'm not sure if there is a net charge movement. But an electric current from a wire can stimulate a neuron and make it trigger pulse.