When gathering night crawlers after dark, use a flashlight with red cellophane over the lens. A white light may scare them back into their holes.  

Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.

February 24, 2012 | Categories: From the Gremlin

Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.