How Pregnancy Is Like Growing an Alien Inside You

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Pregnancy is quite a feat. The embryo manages to develop, get food, and get rid of their waste, all while staying under the radar of their parent’s immune system.

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Sources:
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Images:
https://commons.wikimedia.org/wiki/File:Placenta.svg
http://www.thinkstockphotos.com/image/stock-illustration-normal-pregnant-female-anatomy/530510038
http://www.thinkstockphotos.com/image/stock-illustration-from-ovulation-to-fertilization/646723326
https://en.wikipedia.org/wiki/Blastocyst#/media/File:Blastocyst_English.svg
https://en.wikipedia.org/wiki/Blastocyst#/media/File:Human_blastocyst.jpg
http://www.thinkstockphotos.com/image/stock-photo-3d-illustration-early-stage-embryo-stem-cell/904268718/popup
http://www.thinkstockphotos.com/image/stock-illustration-count-dracula/514459808
http://www.thinkstockphotos.com/image/stock-photo-blood-vessels/155597214/popup?sq=blood%20vessels/f=CPIHVX/s=DynamicRank
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https://commons.wikimedia.org/wiki/File:Healthy_Human_T_Cell.jpg
http://www.thinkstockphotos.com/image/stock-photo-macrophage-binding-with-t-cell/629496602
http://www.thinkstockphotos.com/image/stock-photo-t-cells/628064556
http://www.thinkstockphotos.com/image/stock-photo-portrait-of-a-three-generation-family/200280711-001

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