Autotomy and regeneration in lizards

Autotomy and regeneration in lizards

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Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: Autotomy and regeneration in lizards. At some time in its life this Wall Lizard (Podarcis muralis) was caught by its tail. To escape, the lizard detached a part of the tail, an ability called autotomy, or self amputation. The tail started to wriggle violently and this, hopefully, distracted the predator. Over a period of several weeks the tail may be regenerated - not with a bony skeleton but a single piece of cartilage. The new scales usually look different in colour and shape too. The regenerated tail is often shorter. Some species can regenerated several times.

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Keywords: animal, autotomy, biological, biology, cartilage, caudal autotomy, escape, escape mechanism, fauna, intervertebral autotomy, lizard, nature, no-one, nobody, podarcis muralis, regenerated, regeneration, regrown, regrowth, reptile, scales, school science, science education, self amputation, self-defence mechanism, tail, wall lizard, wildlife, zoological, zoology

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