What do I know about fish? Not a lot, but here goes:
They live in the water.
They breathe water through gills, extracting oxygen through a process called aquatic respiration.
For the most part, locomotion in their liquid environment is accomplished by the action of a posterior blade called a "tail fin," modified by ancillary fins that assist in precise navigation.
They vary in size from very, very small to very large; likewise, their coloration varies widely, ranging from a single color to a riot of iridescent hues.
They travel in "schools," if their species is so inclined.
While some restaurants serve deep-fried strips of fish called "Fish Fingers," fish have no fingers.
Chilean Sea Bass is delicious, but alas, endangered.
