Fishes : the animal answer guide / Gene Helfman and Bruce Collette.

Includes bibliographies and index.

""Cover""; ""Contents""; ""Acknowledgments""; ""Introduction""; ""1 Introducing Fishes""; ""What are fishes?""; ""What is the plural of fish?""; ""How many kinds of fishes are there?""; ""Why are fishes important?""; ""What is the most important fish in America?""; ""Why should people care about fishes?""; ""Where do fishes live?""; ""What is the current classification of fishes?""; ""Why do we need a system of classification?""; ""What is a species?""; ""How are species arranged in a classification?""; ""What characterizes the major groups of bony fishes?""; ""When did fishes first evolve?""

""What is the oldest fossil fish?""""2 Form and Function of Fishes""; ""What are the largest and smallest living fishes?""; ""What is the shortest-lived fish?""; ""What is the longest-lived fish?""; ""Do all fishes have bones?""; ""Do all fishes have fins?""; ""Do all fishes have teeth?""; ""Do all fishes have scales?""; ""What is the metabolism of a fish?""; ""How do fishes breathe under water?""; ""How long can a fish live out of water?""; ""Can fishes breathe air?""; ""What is a gas bladder?""; ""What are lungfishes?""; ""Why do some fishes live in salt water and others in fresh water?""

""Do fishes sleep?""""Can fishes see color?""; ""Can any fishes fly?""; ""What are electric fishes?""; ""Can any fishes produce light?""; ""3 Fish Colors""; ""Why are so many fishes silver?""; ""What causes the different colors of fishes?""; ""Is there a reason for the color patterns of fishes?""; ""What color are a fish�s eyes?""; ""Do fishes change colors as they grow?""; ""Do a fish�s colors change in different seasons?""; ""Is there much geographic variation in the color of a fish species?""; ""4 Fish Behavior""; ""Are fishes social?""; ""Why do fishes form schools?""

""Do fishes fight?""""Do fishes bite people?""; ""How smart are fishes?""; ""Do fishes play?""; ""Do fishes talk?""; ""How do fishes avoid predators?""; ""5 Fish Ecology""; ""Do fishes migrate?""; ""How many fish species live in rivers versus lakes?""; ""How many fish species live in the ocean?""; ""How far down in the ocean do fishes live?""; ""Which geographic regions have the most species of fishes?""; ""Are there fishes in the desert?""; ""Do fishes live in caves?""; ""How do fishes survive the winter?""; ""Do fishes get sick?""; ""How can you tell if a fish is sick?""

""Are fishes good for the environment?""""6 Reproduction and Development of Fishes""; ""How do fishes reproduce?""; ""Do all fishes lay eggs?""; ""Why do some fishes lay so many eggs but other fishes lay only a few?""; ""How long do female fishes hold eggs in their body?""; ""Where do fishes lay their eggs?""; ""Do fishes lay their eggs at the same time and in the same place every year?""; ""Do fishes breed only one time per year or once in their lives?""; ""What is a baby fish called?""; ""Are all the eggs in the nest full siblings?""; ""How is the sex of a fish determined?""

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