Okay, this is my new favorite fish
A type of fish so common that practically every American kid who ever dropped a fishing line and a bobber into a pond has probably caught one is being enlisted in the fight against terrorism.
San Francisco, New York, Washington and other big cities are using bluegills -- also known as sunfish or bream -- as a sort of canary in a coal mine to safeguard their drinking water.
Small numbers of the fish are kept in tanks constantly replenished with water from the municipal supply, and sensors in each tank work around the clock to register changes in the breathing, heartbeat and swimming patterns of the bluegills that occur in the presence of toxins....
Bluegills -- a hardy species about the size of a human hand -- are considered more versatile. They are highly attuned to chemical disturbances in their environment, and when exposed to toxins, they experience the fish version of coughing, flexing their gills to expel unwanted particles....
New York City has been testing its system since 2002 and is seeking to expand it. The New York City Department of Environmental Protection reported at least one instance in which the system caught a toxin before it made it into the water supply: The fish noticed a diesel spill two hours earlier than any of the agency's other detection devices.
If I had known how totally neat-o these fish are, I would have been tossing hot dogs into the pond in my front yard daily.
That reminds me...
Note To Self: Must stop peeing in pond in front yard.
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