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One of the main reasons gerbils have long tails is to give predators something to grab on to. If a hawk or fox caught a gerbil by the tail, the tail could break off and the gerbil could escape.

Tail breakage is the number one medical concern for gerbils. It happens all the time because their bodies are MADE that way.

If the tail starts to die even more, or it smells bad and has green pus, or the gerbil acts weird, you need to take him to the vet.

Most gerbils recover from this with no problems. Your biggest worry would be infections. I saw this on Yahoo answers.

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13y ago

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