How striking is the case of the frilled lizard (Chlamydosaurus) of.    From Wordnik.com.  [The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told] Reference

As we were pursuing our route in the afternoon we fell in with a specimen of the remarkable frilled lizard (Chlamydosaurus kingii); this animal measures about twenty-four inches from the tip of the nose to the point of its tail, and lives principally in trees, although it can run very swiftly along the ground: when not provoked or disturbed it moves quietly about, with its frill lying back in plaits upon the body: but it is very irascible and, directly it is frightened, elevates the frill or ruff and makes for a tree; where if overtaken it throws itself upon its stern, raising its head and chest as high as it can upon the forelegs, then doubling its tail underneath the body and displaying a very formidable set of teeth.    From Wordnik.com.  [Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 1] Reference