[quote]BIGRAGOO wrote:
Btw, does everyone konw that a human undergoes all stages of evolution as it develops in the womb? Yep, gills, a tail, and everything like that.[/quote]
Urban legend.
The so-called gill slits are actually neither gills nor slits, but are more like grooves or wrinkles. These structures develop into the tonsils, the middle ear canals, and the parathyroid and thymus glands.