Thousands of people visit the White Sands National Park in southern New Mexico and leave their traces behind in the endless chalk-colored dunes. Some of those traces, although they look crispy clear, and new, are slightly older than others. Between 21,000 and 23,000 years old, to be precise. Scientists found around 60 fossilized footprints in layers of gypsum soil. They could answer the question of when the first people actually settled in North America.
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Credit:
Gorham’s Cave Complex: Visit Gibraltar – https://flic.kr/p/2ix1WuD, CC BY 2.0 https://creativecommons.org/licenses/by/2.0/, https://commons.wikimedia.org/wiki/File:Gorham%27s_Cave_Complex.jpg
Reconstruction: Bacon Cph, CC BY 2.5 https://creativecommons.org/licenses/by/2.5/, https://commons.wikimedia.org/wiki/File:Reconstruction_of_Neanderthal_woman.jpg
Rekonstruktionsversuch eines Neandertalers: State Office for Heritage Management and Archaeology Saxony-Anhalt / State Museum of Prehistory Halle, CC BY 3.0, https://creativecommons.org/licenses/by/3.0/, https://commons.wikimedia.org/wiki/File:Rekonstruktionsversuch_eines_Neandertalers.jpg
Homo neanderthalensis: Matteo De Stefano/MUSE, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, https://commons.wikimedia.org/wiki/File:Homo_neanderthalensis_-_reconstruction_-_MUSE.jpg
CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/:
Ground sloth: Jaaproosart, https://commons.wikimedia.org/wiki/File:Ground_sloth_sculpture_made_by_Jaap_Roos_art.jpg
Homo sapiens neanderthalensis: Neanderthal-Museum, Mettmann, https://commons.wikimedia.org/wiki/File:Homo_sapiens_neanderthalensis-Mr._N.jpg
Homo neanderthalensis: Jakub Hałun, https://commons.wikimedia.org/wiki/File:Homo_neanderthalensis,_The_Natural_History_Museum_Vienna,_20210730_1223_1272.jpg
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