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Did You Know? Umbilical Cord Cross-Sections Look Like a Dumb :) Face

An umbilical cord is that thing that was connected to you in that place where you’ll now find your belly button, and we all used to have one. Thanks to introductory biology classes, I presume that level of umbilical cord awareness is fairly common. But let’s go a little deeper (on Wikipedia) and learn more about what… »4/16/15 6:50pm4/16/15 6:50pm