What characteristic directly gives the *Thelotornis* the common name "twig snake"?

Answer

Mimicking the appearance of a dead twig or vine

The common name "twig snake" is derived from their remarkable camouflage, allowing them to perfectly mimic the look of a dead twig or vine hanging among foliage.

What characteristic directly gives the *Thelotornis* the common name "twig snake"?
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