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A paleontologist is a scientist who studies the history of life on Earth
through the fossil record. Fossils are the evidence of past life on the
planet and can include those formed from animal bodies or their imprints
(body fossils). Trace fossils are another kind of fossil. A trace fossil
is any evidence of the life activity of an animal that lived in the past.
Burrows, tracks, trails, feeding marks, and resting marks are all examples
of trace fossils.
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