Tag Archives: sperm

Sperm Are Smart Little Guys

As we learned earlier today, sperm have minds of their own. If you want to get pregnant, you might want to have sex with a specimen who is on the opposite end of the attractiveness spectrum as Brad Pitt. And, according to another study, you better hope you’re attractive. When scientists conducted researched on red junglefowl, they found growing evidence that promiscuous species can mate with many females, but their chances of fertilizing a lady increased when the female was a hottie. So, when we say men think with their dicks, rather than their brains, maybe we shouldn’t be giving their members so much credit. It seems to the sperm are the smart ones. [Discovery News] Keep reading »

Another Reason You Don’t Need A Man: Scientists Develop Sperm Without Them

British scientists have found a way to create fully mature, functioning sperm in a lab. Researcher on the project, Professor Karim Nayernia explained, “The work is a way of investigating why some people are infertile and the reasons behind it.” And the pay off is that women or couples who’ve had fertility issues not only have more hope now, a single lady can get pregnant without the aid of a real-live-man. Some scientists are skeptical over Nayernia’s project though. Prof Azim Surani, from Cambridge University, described the lab samples as “a long way from being authentic sperm cells.” Still, kind of amazing, right? [Metro.co.uk] Keep reading »

Shooting For Sperm

In “you are nastier than sin” news, word is that some woman is selling the semen of pro athletes to (desperate) women who yearn to have a baby by a baller. Or better yet collect child support from one. It seems she’s collected the sperm of a dozen athletes and is ready to sell off her collection to the highest bidder. Continue reading Keep reading »

“More Sex” Recommended For Everything That Ails A Man

Doesn’t it always seem that for whatever may ail a man, the antidote is always more sex? Take men with “damaged sperm,” for example. In a new study of 118 Australian men with damaged sperm — but really, what is damaged sperm? — doctors “found that having sex every day for a week significantly reduced the amount of DNA damage in their patients’ sperm” and increased their likelihood of getting a woman knocked up. Dr. David Greening of Sydney IVF, a private fertility clinic in Australia, and some other researchers found that in 81 percent of the men, there was a 12% decrease in the amount of damaged sperm. A 12% decrease hardly seems like something to hang one’s hat on, but Dr. Greening is now instructing all couples seeking fertility advice to start by having more sex. “Some of the older men look a little concerned,” he said. “But the younger ones seem quite happy about it.” Sperm quality can also be improved if men exercise, get more antioxidants, and give up their smokes and booze, but something tells me that most men concerned about the health of their sperm will opt for the “more sex” route. [via wcbs]

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Super Sperm

I love the scene in “Look Who’s Talking” where the basic rule of human reproduction plays out on screen: the fastest sperm wins the race to the egg. But in the animal kingdom at large, that is not always the case. Scientists have found an ancient species called Ostracods where the largest sperm won. Even though Ostracods were kinda snail like and less than centimeter long, the males produced sperm nearly ten times their size. I can only imagine that super sperm would make reproduction mega painful, but fear not! Evolution endowed the female sea critters with huge cavities (pictured above is an X-ray image of one cavity half filled with the massive man juices) nearly a third of their body size, to store the mammoth sperm. Well now you know: when it comes to the big O (O, meaning “Ostracod”), bigger is better. [IO9] Keep reading »

(Sperm) Size Matters

Size may not matter in the human world, but when it comes to other animals and insects, giant sperm is the way to go, especially if the creature has a tiny body. A mussel-like animal that lived 100 million years ago produced sperm that was longer than its body. Even today, there are animals making large sperm. A fruit fly can produce a 2.5-inch coil of sperm, even though its body is only a few milliliters. To equal the same sperm to body ratio, a human would have to produce sperm 40 meters long. Ostracodes, an extinct ancient class of arthropods, also produced long sperm. With these findings scientists have concluded that giant sperm production is a proven, evolutionary tactic for successful reproduction. Creatures can increase the chance of fertilization with a larger sperm cell. [Reuters] Keep reading »

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