Some fish make sounds by grating their teeth and others, like some catfish, make sounds from their air-filled swim bladder.

40% of all fish species inhabit fresh water, yet less than .01% of the earth’s water is fresh water.

March 26, 2012 | Categories: From the Gremlin

40% of all fish species inhabit fresh water, yet less than .01% of the earth’s water is fresh water.