Glossary

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quadrupedalism

a form of positional behavior (i.e., posture and locomotion) that utilizes both the front and the hind limbs; an animal that locomotes on four legs is referred to as a quadruped. See also arboreal quadrapedalism and terrestrial quadrupedalism.

quarry
man-made pit in which part of the earth is excavated.
Quaternary

a period in the Cenozoic era on the geologic time scale that approximately dates from 1.8 million years ago to the present; marked as the period in which the genus Homo evolved; contains the Pleistocene and Haolocene (recent) epochs.