It's tail can break off and it will grow back.
Lizards can lose their tail and regrow it if captured by a predator.
Iguanas do not have a prehensile tail.
Iguana's have long tails because the tail provides an Iguanas main defense. Not only can they use their massive strong tail to whip the predator to either hurt it or startle it, but they also can drop their tails when they are in danger to distract the predator.
drop its own tail
Like many lizards, iguanas can "drop" their tails. Iguanas have muscle bundles with special attachments to the vertebrae in the tail. These are areas where it is easier for the tail to break, should a predator grab hold of the iguana's tail.
iguanas have a spiky tail to whip predators. (:
The ability of some animals to drop their tail when caught is a defense mechanism called autotomy. This allows the animal to escape from a predator while the detached tail continues to wiggle, distracting the predator. The tail will often regenerate over time.
they hit with their tail
Iguanas do not have a prehensile tail.
because they want to be different and feel special
Iguanas can grow to 6 feet (1.8m) nose to tail.
If grabbed by a predator, the tail of most skink species can easily come off leaving the predator with nothing but a wiggling tail and the skink a new lease on life.