Why do humans have hair? Why do humans have nails? Why do we have chins? 🤪 Human body is made up of atoms and cells, it's a complex mechanism where every detail matters. It turns out, we're the only living beings on this planet to have chins, even our close extinct relatives, Neandertals, didn't have it… So what's the purpose of our chins? Here're 30+ human body facts to explore. 💡 Bright Side now has MERCH available worldwide: http://bit.ly/2OJubyA #brightside #humanbody CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0: Human Skull — close-up showing chin: By Pied Kiwi, https://commons.wikimedia.org/w/index.php?curid=23285334 African Bush Elephant skull on exhibit at the Museum of Osteology, Oklahoma City, Oklahoma: By JimJones1971, https://commons.wikimedia.org/w/index.php?curid=31513469 Relative sizes of the planets in the solar system and several well known stars: By Dave Jarvis (https://dave.autonoma.ca/), https://commons.wikimedia.org/w/index.php?curid=5932805 Humans and apes are the last surviving members of the hominids: By kaiwei zhang – http://blog.illustraciencia.cat/2015/05/gorilla-chimpanzee-humans-kaiwei-zhang.html, https://commons.wikimedia.org/w/index.php?curid=45253941 CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0: Lebend-Rekonstruktion im Neanderthal-Museum (Erkrath, Mettmann): By Neanderthal-Museum – https://www.neanderthal.de/de/urmenschen.html, https://commons.wikimedia.org/w/index.php?curid=94895244 Homo heidelbergensis: By Jerónimo Roure Pérez, https://commons.wikimedia.org/w/index.php?curid=48729064 African elephant skeleton: By Museum of Veterinary Anatomy FMVZ USP, https://commons.wikimedia.org/w/index.php?curid=71199112 Reconstrução facial de um Homo erectus pekinensis: By Cicero Moraes, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=63640610 Hyoid bone (shown in red): By Anatomography, CC BY-SA 2.1 jp https://creativecommons.org/licenses/by-sa/2.1/jp/deed.en, https://commons.wikimedia.org/w/index.php?curid=24001578 Homo floresiensis IMG 2937: By Rama, CC BY-SA 3.0 fr https://creativecommons.org/licenses/by-sa/3.0/fr/deed.en, https://commons.wikimedia.org/w/index.php?curid=7529401 Animation is created by Bright Side.
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