Did you know you have stripes? 12/6/2012

Pharyngula

Before you go looking, they’re usually invisible – if they were visible, we wouldn’t need to tell you about them! The stripes (or Blaschko’s lines, after the discoverer Alfred Blaschko) typically follow the same basic pattern – V-shapes on the back, S-shapes on the abdomen and an inverted U-shape around the breast and upper arm. They seem to be a clue to embryological development, though they do not correspond to structures such as nervous, endocrine, lymphatic or vascular.

See the whole fascinating article here: ScienceBlogs Pharyngula
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