Did Dinosaurs Have Belly Buttons?
6,300Belly buttons are, typically, a human's first scar. A sign that you used to feed through an umbilical cord that connected your tummy to a placenta. But it turns out you don't have to feed from a placenta to get a similar scar. It might just be a little hard to find.
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Sources:
https://theconversation.com/curious-k...
https://education.nationalgeographic....
https://www.medicinenet.com/what_is_t...
https://www.mayoclinic.org/healthy-li...
https://www.akc.org/expert-advice/dog...
https://cooperpetcare.com/do-cats-hav...
https://whyrabbits.com/do-rabbits-hav...
https://www.nhm.ac.uk/discover/do-sha...
https://www.britannica.com/animal/Amn...
https://bmcbiol.biomedcentral.com/art...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.nhm.ac.uk/discover/when-d...
Images:
https://www.gettyimages.com/
https://commons.wikimedia.org/wiki/Fi...
https://saveourseas.com/update/umbili...
https://www.researchgate.net/publicat...
https://www.cell.com/current-biology/...
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