We know that parasites are the bad guys that trigger diseases. Some are lethal, like malaria, others just decrease fitness (like gut worms). Those attacking the sexual apparatus affect fertility. Wolbachia is a bacterium encountered in over 20 % of all insects and known to decrease female fertility. But a new resear...
They say that sex helps you burn calories and get in shape. But if we look at the female ticks, we could see how after mating, they grow from as big as a sand grain to the size of a large bean. The ixodid female ticks experience an astonishing 100 times weight increase after mating!Dr. Reuben Kaufman, from the Depart...
Definitely, men and women are different species. And if you think it's just a physical difference, that's wrong. There are differences in all inner organs, including the brain. These brain differences are, of course, translated into behavioral differences. These sex differences in people's brains and b...
Cholesterol may be dangerous, but it also has its good variant in the blood that decreases the risk of heart attack. If a new research made on mice has results that are also valid for humans, new therapies could boost the levels of the beneficial high-density lipoprotein cholesterol (HDL-C) as a means of heart protec...
This parasite kills 1 to 3 million people annually, 90 % African children in south Sahara, while 650 million suffer the consequences of this disastrous disease. Malaria is caused by a protozoa (single-celled) parasite, Plasmodium, and is transmitted from individual to individual through the bite of the Anopheles mosq...
Now, porn really can go down to a very low level. Scripts can include sperm cells and eggs or bacteria if you want. A MIT team has designed a microscope that acts like a camera generating three-dimensional movies of live cells. The device functions like a cellular CT scanner, giving researchers the opportunity to see...
What makes a typically 'macho' face? Large jaws, well-defined cheeks and large eyebrows are hot or at least were in the eyes of some naughty women ancestors, as a team at the Natural History Museum has found. It is well known that facial attractiveness played a crucial role in the sexual selection during hu...
As we all have learned, females produce eggs and males sperm. Females are the mothers and males are the fathers. This has been so ever since the beginning of times. The female takes care of the eggs and eventually of the offspring. And what if not? Nature has many surprises for us. Sometimes males are very devoted mo...
It's a fact that men are so horny because of testosterone. Now, women could benefit from this, too. A new study shows that women with hypoactive sexual desire disorder (HSDD), characterized by persistent or recurrent deficiency and/or lack of sexual fantasies/thoughts/desire or absence of sexual receptivity) sho...
Sperm competition can go really wild, and sometimes, the race for fertilizing an egg goes beyond natural selection. This seems to explain the higher than normal rate of a mutation that stops skull growth and induces joined fingers and toes, as the same mutation also spurs the division rhythm of the cells that form sp...
You can use the URL below for linking to this article (permalink):
