Characteristics that increase human reproductive function should become more common, and characteristics that decrease it should become less common. It seems to me that fuckwits with an inability to find gainful employment tend to produce greater numbersof offspring and start at an earlier age...
An extra blood vessel in the forearm is becoming more common, it develops in all human embryo's but usually used to disappear in babies as the ulnar and radial arteries develop further.
Anyway, it looks likely that in the near future it will be normal to have this artery into adulthood, and...