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Like most fish rainbow trout are covered in scales.

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Trout video

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Since they are in every continent they are not endangered.

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Rainbow trout have spines in their fins and have small teeth to protect themselves.

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Since they like cold water they don't migrate or hibernate.

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They travel in small schools or alone.

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The colors on a rainbow trout can range from brown, to olive, to dark blue, and they have a pinkish stripe running down the middle of them.

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Rainbow trout have around 400 to 3,000 eggs depending on the size of the female trout.

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Some predators include other fish, king fishers, herons, eagles, and raccoons.

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One distinct characteristic of rainbow trout is their innate desire to return to spawn in the same stream they were hatched.

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Their ideal temperature range is from 55 to 60 degrees Fahrenheit.

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The temperature tolerance for rainbow trout is from 32 to 70 degree Fahrenheit water.

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Rainbow trout are born inside an egg.

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Rainbow trout are cold blooded.

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An average mature trout is around 16 inches in length, and weighs between 2 to 8 pounds.

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The largest rainbow trout ever caught was 48 pounds.

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The rainbow trout's scientific name is Oncorhynchus mykiss.

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The rainbow trout is a trout and species of salmonid native to cold water tributaries of the Pacific Ocean in Asia and North America.

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The rainbow trout is a trout.

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The rainbow trout has been introduced to every continent except Antarctica.

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Trout begin spawning at the age of 3 or 4.

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The spawning season for trout occurs in the spring.

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Rainbow trout are predators, and will eat almost anything that they can catch including insects, small fish, and crustaceans.