World News | Ben Guarino, The Washington Post | Thursday April 26, 2018
A human followed quite literally in the sloth's footsteps. "Given the arid environment, there is quite a narrow amount of time you can walk on that surface to record your footprint," said Matteo Belvedere, a scientist with Switzerland's Paleontology A16 project who specializes in trackways and was not involved with this research.
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