Zoological Tidbits
Here's a good question for ichthyologists: why is it that most cave dwelling species lack eyes (or have reduced or covered organs), while most deep sea fishes, living in an equally black environment, have huge eyes and their own lights? The origin of the word "torpedo" goes back to ancient Greece. The local electric ray, a flat relative of sharks and stingrays, was called Torpedo and could give a strong enough electric jolt to a person who stepped on one to send him forcibly off his feet. The word later became associated with any object in the water that had similar impact. The blood of some Antarctic ice fish contains a natural antifreeze that keeps the blood super cooled. However, if the fish comes in contact with ice (which is warmer than the water), its blood begins crystallizing, killing the fish.
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