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Lizards are able to regenerate, or regrow, a body part. Many of them have evolved a special technique that makes their tail fall off and wiggle to attract a predator. This allows the lizard to escape and grow the tail back later. Another animal who does something similar is the octopus, which can shed an arm and grow it back later.

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How lizards break their tail as a way to escape from enemies?

I believe that what happens is that the predator catches the lizard by the tail, and then the tail breaks off and the lizard gets away, leaving the enemy there in awe with a tail dangling from his mouth. :] I believe the tail is mostly dead skin cells, and it can be regrown in a short period of time.


Do lizard's tails fall off when they are scared?

Yes, some lizards can voluntarily detach their tails as a defense mechanism when they are threatened or scared. This behavior is called autotomy. The detached tail will continue to wiggle, distracting the predator while the lizard escapes. The tail will eventually regenerate, though the new one may look slightly different.


Why do lizards lose their tails?

A tail will often wiggle after it has come off to distract the attention of the predator so the lizard can escape. Lizards sometimes eat their own tail after they have shed it to regain weight from losing the tail. Some lizards store up to 60% of their body fat in their tail. A species of Skink can survive 35 days without food but may die in 24 days after losing its tail. It may take only a month for small lizards to regrow their tail but for larger lizards it can take a year. Geckos can live without food for 90 days but if they have lost their tails they may last only 50 days. Female lizards that have lost their tails produce fewer eggs because their body's energy is used to regrow their tail.


Which animal sheds its tail when attacked?

Some lizards (e.g. the Gecko) will do this.


How long does it take for a dog tail to fall off with a rubber band on it?

It is not recommended to use a rubber band to dock a dog's tail as it is a painful and inhumane practice. In some cases, the tail may fall off due to loss of blood circulation, but this is not a safe or humane method of tail docking. It is advised to consult a veterinarian for safe and appropriate tail docking procedures, if necessary.

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