Filtering Out their own Noise

Another word that can be used in a variety of ways and depends on context is noise. It may be rap "music," trash collection at 5 AM, or other annoying sounds. However, noise may not always refer to sound! Some critters emit odors of their own but need to sniff out things without being overwhelmed by their own.

Remember neurons, for which Darwin's acolytes cannot explain the origin? Biological noise canceling happens at that level. It works in a similar manner as noise cancellation in headphones, where a receiving neuron sends information to the sending neuron to cancel the noise.

Elephant fish, Wikimedia Commons / F.E. Clarke, 1866 (public domain)

Experiments were conducted on mormyrid fish (such as the elephant fish), which can emit and receive electrical currents. It sends out pulses, but must be able to tune them out when necessary signals are returned. Of course, credit is given to evolution and not the Creator who designed these systems. It would be interesting if people did not let them get away with this and said, "Okay, smart guy. You said it evolved. Show the world how it supposedly evolved — with science, not speculation."

Snakes should be immune to their own poison. Electric eels should not shock themselves. And protection from self-generated noise requires a preplanned noise cancellation system.

In a Dispatch in Current Biology, Leonard Maier discussed a biological requirement many don’t think much about: how to ignore your own noise. Eliminating self-generated noise, he says, is accomplished by “Active Sensing.”

The rest of the article is found at "Noise Cancellation: A Remarkable Design Solution in Biology."