The mental scale, or mental, in snakes and other scaled reptiles refers to the median plate on the tip of the lower jaw. It is a triangular scale that corresponds to the rostral of the upper jaw. The reference to the term 'mental' comes from the mental nerve which addresses the chin and lower jaw in animals. In snakes, the shape and size of this scale is sometimes one of the characteristics used to differentiate species from one another.
Read more about Mental Scale: Related Scales
Famous quotes containing the words mental and/or scale:
“It is human agitation, with all the vulgarity of needs small and great, with its flagrant disgust for the police who repress it, it is the agitation of all men ... that alone determines revolutionary mental forms, in opposition to bourgeois mental forms.”
—Georges Bataille (1897–1962)
“The most perfect political community must be amongst those who are in the middle rank, and those states are best instituted wherein these are a larger and more respectable part, if possible, than both the other; or, if that cannot be, at least than either of them separate, so that being thrown into the balance it may prevent either scale from preponderating.”
—Aristotle (384–322 B.C.)