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Fact: Some Animals Just Don’t Need Males

Some Animals Just Don’t Need Males

Did you know that there are certain animal species where there are no males only females. This is fairly common among insects and worms but also occurs to a lesser extent in some lizards.  Due to only one sex existing the females are actually able to lay eggs without the need of a male (i.e. no fertilization is required). 

This method of reproduction is known as parthenogenesis and will almost always leads to the birth of female offspring.  As an example the New Mexico whiptail lizard is 100% parthenogenic and has been bred in captivity for many generations with no males at all.

14 Comments

  • User Points: Not A Member
    Posted on 22nd January 2009

    Ummm..that is like kinda weird :)

  • User Points: Not A Member
    Posted on 14th April 2009

    wow…so what, do the women lizards hump each other? that is wacko.

  • User Points: Not A Member
    Posted on 26th May 2009

    weird…

  • User Points: Not A Member
    Posted on 20th June 2009

    I find it very fascinating that not all females need a male to survive; although I do really love the man creatures, it’s interesting to know that I too will survive! (not a lesbian either)!

  • User Points: Not A Member
    Posted on 15th August 2009

    hmmmm….really weird….

  • User Points: Not A Member
    Posted on 8th October 2009

    ok?? so weid.. but cool XD

  • User Points: Not A Member
    Posted on 20th November 2009

    new mexico whiptail lizard lives in dry areas which they didn’t included

  • User Points: Not A Member
    Posted on 13th April 2010

    wow…thts soo cool…but also like sad…the girls would get lonely…and would miss out 99.9999999999% of all fun in life

  • User Points: Not A Member
    Posted on 23rd April 2010

    We look at the world through our own rose colored classes. It is nice to know that lizards point out that the world is not as we perceive it in all cases. Learning new facts that may shock and amaze leaves one with thoughts of a future where science takes out the gender factor and swaps in the genome and asexual reproduction. There is much we can learn from nature.

  • the moon iss huge

  • User Points: Not A Member
    Posted on 13th May 2010

    im dead

  • User Points: Not A Member
    Posted on 14th June 2010

    umm..this is like totally wierd but soo cool….and poor girls they wont have fun with the male…;)

  • User Points: Not A Member
    Posted on 5th July 2010

    oooohhhhhh!!!!!!! that is so weird…. :D :) :D :) :D :) :D :) :D :)

  • User Points: Not A Member
    Posted on 20th November 2010

    yeah its kinda wierd but u can still know alot from this

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