VESTIGIAL CHARACTERISTICS AS A FORM OF THE MORPHOLOGICAL EVIDENCE OF NATURAL SELECTION

why do male mammals (including human males) have nipples?

why indeed? unless magkakaroon kami ng gatas anytime soon, wala talaga itong function. well, except the fact na nakakapag tanggal ng init ng ulo pag ito’y nadilaan. it also leads to third leg stiffness. BWAHAHA. personally, i kind of like my nipples even though these vestiges are evolutionary dead ends. why do i like them? tumitigas kasi ito whenever i’m aroused. you can read more about natural selection, male nipples as evolutionary dead ends and the legacy of darwin sa latest issue ng national geographic.

oo nga pala, may kakilala akong tao na may more than two nipples. ang nanay ba niya ay aso? hindi naman siguro. baka masamang genetic mutation lang. bigla ko tuloy naisip: ang english translation pala ng “ang nanay ba niya ay aso” ay: “is he a son of a bitch?”

18 thoughts on “VESTIGIAL CHARACTERISTICS AS A FORM OF THE MORPHOLOGICAL EVIDENCE OF NATURAL SELECTION

  1. I read that we are all female by default. Naiiwan daw yung useless nipples (for male) to remind us of this. Talk about divine feminity…

    Have a nice day to you idol…

  2. Ano nga ba ang purpose ng male nipple? May explanation kaya si Doc Emer dyan? Does it erect when you’re excited? Hmm, i never noticed mine. Baka naman for aesthetic value? Kasi it renders balance and besides, pag wala ito, may malaking gap sa dibdib natin. Hmmmm…

  3. nasa singapore pa ako idol.

    come to think of it, yung clitoris raw ay miniature penis with a head and a shaft. hindi kaya ito talaga yung nagiging penis during the transformation from male to female?!

  4. O natanggap mo na Natl Geographic subscription mo? Ako, nasa plastic pa. Wala pang time magbasa….

    Homologue yung nipples natin, BatJay. It roughly means, “counterpart.” In our case, it becomes a vestigial structure because of loss of function over years and years of evolution. Di naman tayo nagpapasuso.Yung pagiging erect nya pag aroused ka, pag maginaw, o pag kinikilabutan ka, present din lahat yun sa babae.

    Parang appendix din yan. Vestigial structure. Puede mong ipaalis dahil wala namang silbi. Of course, walang gumagawa kasi unusual yun. Pero, logically speaking, posible.

    Other homologue structures ng male and female species:
    penis – clitoris (as Pepe said)
    scrotum – labia minora/majora
    nipples – as you discussed here

    Perspective lang yung “all of us are females by default.” It’s probably true, nipple-wise, eh paano kung penis-wise? Eh di naging vestigial structure yung clitoris ng mga babae. I’m sure they won’t agree. Dun nakadepende orgasm nila, kaya hindi nila ipapatanggal yun. But if we discuss it from that perspective, puede ko ding sabihin na: “all of us are males by default.”

    I like Pareng Darwin. He would have enjoyed this discussion. šŸ™‚

  5. gandang hapon doc emer.

    natanggap ko na last week yung nat’l geo magazine ko. maganda nga ang cover story tungkol sa evolution at doon sa legacy ni darwin. was darwin wrong? the big answer is apparently “NO”. one of the greatest scientific discoveries has stood the test of time. idol ko talaga siya.

    vestigial structure is correct. pero like i said i kind of like my breast – most especially my nipples. hehehe. homologue pala ang isa pang tawag doon ah. magandang term din. iniisip ko ngang ipaalis ang nipple ko. ipapalipat ko yung isa sa gitna ng aking noo. tapos yung isa naman sa kaliwang pisngi ng pwet. hehe.

    pero seriously – ang galing ng explanation mo doc emer. as usual, binibigyan mo ng kahulugan ang mga twisted questions ko.

    ingat!

  6. ayos ba sir junnie. malamig diyan sa canada – ingatan mo ang mammary glands mo para hindi tumigas.

    yung explanation ni doc emer sa comments ay talagang nakapagbigay ng maraming kasagutan sa mga matagal ko nang mga tanong.

  7. Grabe naman itong balitak-takan tungkol sa utong ng lalaki. Tama si batjay, isang kababalaghan na karugtong ito ng ‘third leg’ – sabay ang kanilang pagtirik at paghupa ayong sa kakaibang init na mula sa loob.
    Anuman ang dahilan, masarap ang nararanasang pahiramdam! Yon lang po!

  8. Bakit may utong ang mga lalaki?

    Maaari kayang ito ang pasimula ng ebolusyon ng mga kalalakihang balang araw ay magpapasuso sa kanilang mga sanggol? Yikes!

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