Posts Tagged ‘reproduction’

Woman Gets Pregnant…While Already Pregnant

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babyA woman in Arkansas is pregnant with two babies at the same time…except they aren’t twins. ABC News reports:

Doctors successfully located Todd and Julia Grovenburg’s growing baby girl Jillian, but then discovered another smaller baby — what could be Jillian’s younger brother — growing beside her.

The Grovenburgs may have conceived their son Hudson a full two-and-a-half weeks after Jillian, according to statements given to KFSM-TV in Ft. Smith-Fayetteville, Ark.

There’s even a name for what happened: superfetation, or conceiving while pregnant. Unsurprisingly, it’s extraordinarily rare—one doctor said she could only track down 10 reported cases.

Granted, there’s a big problem—what happens to the younger baby when the older fetus is born?

“It [the second conception] can happen up to 24 days later than the first conception, and then you’re putting the second baby at risk for lung development problems,” said [OB-GYN Karen Boyle].

However, in the Grovenburg’s case, Boyle said the difference of two weeks would not put the younger baby at much of a risk for health problems.

Talk about dodging a bullet—though birthdays in the Grovenburg household should be interesting.

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Image: iStockphoto

September 25th, 2009 Tags: , ,
by Melissa Lafsky in Sex & Mating | 4 Comments » | RSS feed | Trackback >

Do Men Get Struck By Lightning More Than Women?

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lightning_webMen make up a whopping 82 percent of the 648 people that were killed by lightning in the U.S. from 1995 to 2008. Dudes, what gives?

Apparently, standing outside during a lightning storm with a metal pole in your hand seems like a good idea to a lot of men.

Via Popular Science,  John Jensenius, a lightning safety expert with the National Weather Service, had this to say:

Men are less willing to give up what they’re doing just because of a little inclement weather… and will continue to engage in pastimes that make them vulnerable, such as fishing, camping and golfing. Recreational or sports-related activities are involved in almost half of all lightning-related deaths.

To put an evolutionary spin on the data, Peter Todd, a behavioral psychologist at Indiana University, said he thinks men are hard-wired to exhibit bold (stupid?) behavior to attract a mate—though unless their ideal mate is their golfing or fishing buddy, it’s not so clear how this strategy works. Are women really impressed by tales of some dope slicing into the woods during a lightning storm?

Evolutionarily speaking, you’d think men with a tendency to hang around outside during storms would have been killed off by now—and maybe that helps explain why only 648 people were killed by lightning over the past 13 years.

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Image: flickr / Axel Rouvin

September 22nd, 2009 Tags: , ,
by Brett Israel in Diseases, Injuries, & Other Ailments | 3 Comments » | RSS feed | Trackback >

Study: Talking to Hot Women Makes Men Lose Brain Function

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flirtingBreaking news! Men become less intelligent when they’re trying to impress women they’d like to sleep with! A new study in the Journal of Experimental and Social Psychology found that “men who spend even a few minutes in the company of an attractive woman perform less well in tests designed to measure brain function” than men who talked to women they didn’t want to, er, mate with.

The Telegraph reports that the study, which consisted of 40 male heterosexual students, proceeded as follows:

Each one performed a standard memory test where they had to observe a stream of letters and say, as fast as possible, if each one was the same as the one before last.

The volunteers then spent seven minutes chatting to male or female members of the research team before repeating the test.

The results showed men were slower and less accurate after trying to impress the women. The more they fancied them, the worse their score.

And how did the other sex fare? When the test was repeated with a group of female volunteers, their memory scores stayed the same regardless of whether they’d chatted with a man or a woman.

The researchers even managed to come up with a somewhat scientific theory for why this occurred:

Researchers who carried out the study…think the reason may be that men use up so much of their brain function or “cognitive resources” trying to impress beautiful women, they have little left for other tasks.

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Image: iStockphoto

September 4th, 2009 Tags: , ,
by Melissa Lafsky in The World According to Darwin | 11 Comments » | RSS feed | Trackback >