Wind. Solar. Geo-thermal. Those alternative energy sources are so 2011.
An aquarium outside of Salt Lake City has harnessed a new kind of energy: eel power.
Here's how it works, the local power company installed two stainless steep probes inside the tank. When the eel puts out its electric pulse the probes pick it up, channel it to a sequencer and the lights blink, said spokeswoman Angie Hyde.
The eel, part of a permanent South America freshwater exhibit, is not actually lighting the tree, but his electric output is controlling the blinking.