Men who study fish call a number of 
different fishes by the name Salmonidae. 
This means the salmon family. The 
Salmonidae are the very highest type of 
fish. All are alike in certain ways, 
though they may be different in other 
ways. They have soft fins, a long body, 
and a special kind of fin on their backs. 
And all of them are found only in the 
northern waters of the world. 
The trout belongs to this family, so he 
is a cousin of the salmon. The Indians, 
who watched nature very closely, knew 
that the trout and the salmon were re¬ 
lated. They even made up stories about 
trout that turned into salmon. 
Many of the Salmonidae are such 
distant cousins and look so different that 
it is hard to believe they belong to the 
same family. But all salmon are closely 
related, and so all look very much alike. 
Their heads are shaped somewhat like 
ice cream cones. They have good strong 
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