Science Confirms That With Sex, Size Actually Does Matter
Aug 06, 2012 11:03
When it comes to successful fertilization, turns out that it's not so
much about how fast your little swimmers sperm but how long its measures
from the bulbous little head to the tip of its tiny swimming tail.
The claim comes from a study set be published in the journal Current Biology, wherein scientists studied the ejaculate traits of fruit flies. At first, they mated different fruit flies with the same female. The flies were genetically modified to produce fluorescent sperm, with one group glowing red and the other glowing green so that researchers could observe as the sperm raced to the egg.
Apparently, speed was not an advantage mainly since all the sperm were heading to the same place and still had to wait around for the egg to be released anyway. What was interesting was that the slower sperm also tended to be longer, which gave them an advantage when to came to dealing with the faster (and shorter) sperm that had been waiting around for the egg.
Hmm, so slow and steady wins the race? If we didn't know any better, we'd say the findings of this study sounds strikingly similar to a certain Aesop fable.
Today's world makes it easy for anyone to find out who they are meeting before they even meet. So it makes sense that your in-laws to be would have checked you out in this manner: What does he like? What crazy stupid thing has he done, you wonder? Let's see if I'll pre-approve him before meeting him. Read more
As far as wingsuits go, there probably isn't any other sport which has extreme adrenaline pumping through your veins. But just flying around isn't enough. You've got to get on the down-low to do some crazy things. Literally. This daredevil flew so low he could high five a giant hand waiting for him. Read more
IKEA wanted to find out what kids really want for Christmas so they invited 10 families over to participate in an experiment. The children were asked to write two letters, one to Santa and another to their parents. But what they wrote to their parents, made them cry. Read more