Hi, I'm Andrew and I’m just a simple 19 year old guy and zoology student that posts random factoids about obscure animals and general animal science/zoology/biology stuff so if you like animals this is the place for you, if you only like cute animals this is not the place for you… Also I can ID any animals you might need identified (just submit them to me).

Disclamer: none of the pictures are mine unless stated

Family Polioptilidae: A family of passerine birds commonly known as "Gnatcatchers". All gnatcatchers are native to the New World, being found in both North and South America. Gnatcatchers are close relatives of the wrens and some species are known as "Gnatwrens".

Image: Erikwlyon

 

How do fish produce electricity?

the science of bioelectrogenisis and electrocytes

As many people may know a wide variation of fish like rays, Knifefish (the electric eel is a knifefish) and some catfish are known to produce electricity, however most other animals cannot do this. How are fish able to accomplish this biological marvel? Fish generate and use electricity through a process called bioelectrogenisis, bioelectrogenisis is done through a special type of cell called an electrocyte, electrocytes ironically look like a stack of flat watch batteries stacked on top of each other. An animal can have several thousand of these cells stacked in their bodies, with a single cell producing .15V. These cells function by pumping positive potassium and sodium ions out of the cell via ATP powered proteins. The cell functions like a marx generator as the elements are charged in a parallel circuit, where they are suddenly and simultaneously discharged in a series circuit to produce a pulse. When the animal wishes to fire its electric organ the animal uses a pacemaker nucleus, which is a group of nerve cells that regulate the amount of impulses the electrocytes make, When ready the pacemaker fires and acetylcholine is released from the neurons in the nucleus to the electrocytes causing the electric organ to discharge and produce an high voltage pulse.

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    woooah. also, knifefish.
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    This is great. I WAS actually thinking about this.
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