Stacy (negativeneve) wrote in wtf_nature,
Stacy
negativeneve
wtf_nature

Let's talk about sperm

While hearing interesting tid-bits from an article on human sperm, I decided to compile a list of facts about it.
  • The average man produces less than half the sperm count as their grandfathers.
  • The average sperm count has also declined.  The average man now produces around 50 million sperm per ml.  Our forefathers produced around 120 million sperm per ml.
  • Scientists have successfully created sperm using a female stem cell.  Men are no longer needed to create sperm.
  • Men produce more sperm when watching porn.  But only male on female porn.  No lesbian action, or men on men.  This is all part of a survival tactic back in the day when women had many male suitors and male sperm had to compete to inseminate.
  • Japanese researches have made rats and mice produce human sperm cells.
  • Ever wonder how the sperm manages to find the egg?  Apparently it smells it's its way through.
  • There is a link between male cocaine users and an abnormal development in their children.  Research suggests sperm carries the cocaine to the egg.
  • Smoking pot reduces the mobility of sperm by half.
And in case you didn't know what sperm looked like:
Tags: homo sapiens, human, sex
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  • ...I got nothin.

    Rare blind 'snake' rediscovered in Brazil... "The unique creature, Atretochoana eiselti, was found after engineers drained a hydroelectric dam…

  • Paradoxical Frog

    Because I've been rereading my Gerald Durrell books, and this particular species starred in Three Singles to Adventure, the account of his…

  • Titanomyrma lubei

    At Catalogue of Organisms, Christopher Taylor gives us a denizen of what was then the high north, 50 million years ago - What To Do With A Dead…