... gracilicornis, do seem to win this race as they have evolved a morphological shield behind which their genitalia are hidden from males, protecting them against the males' forceful attempts to mate.
...
... descend into the scrotal sac naturally.
Hypospadias: One of the most common birth defects of the male genitalia, hypospadias varies in incidence around the world but can affect up to one ...
... been preserved throughout primate evolution; examples include average body size and weight, and genitalia design. This study, believed to be the first of its kind, focuses on gene expression within ...
... customs can experience shock and uncertainty upon entering ethnic restaurants serving traditional dishes prepared with items such as fertilized poultry eggs, live eels and frogs, and animal genitalia.
... she had few qualms about female genital mutilation, the practice of cutting a girl's clitoris and sometimes other genitalia. She herself was cut two decades ago, and she fears her daughters will not ...
... .S. (North Carolina), Italy, and western and eastern Australia, exhibit substantial changes in both horn and genitalia length -- as much as 3.5 times, in terms of an "investment" index the scientists ...
Larger fighting horns or genitalia may drive dung beetles to evolve into new species.
At Children's Hospital of Philadelphia, surgeon Howard Snyder says he and his colleagues repair the genitalia of roughly 300 baby boys every year - about double what they did when he started his ...
... a significant link between hairspray and hypospadias, one of the most common birth defects of the male genitalia, where the urinary opening is displaced to the underside of the penis. The causes of ...
... built with thick padding to withstand mating. (To get these pics of the toothy, horny beetle genitalia, the scientists pumped them up with a vacuum pump -- just like Austin Powers!)
Also in today's ...
... to look at female choice following experimental manipulation of both male and female genitalia," said William Eberhard, staff scientist at the Smithsonian Tropical Research Institute and professor of ...
Manipulation of male and/or female genitalia results in a suite of changes in female reproductive behavior in tsetse flies, carriers of African sleeping sickness.
Darwin didn't miss much, I think we all agree, and came up with a lot given the limited science of his day. One thing he missed, that by this time tomorrow will be the source of outrageous titles ...
... make possible.
In some animals, sudden, heritable changes in the size and shape of genitalia have the potential to prevent some individuals of a population from mating with most of the others. Even ...
... ". The great diversity of male sexual traits, ranging from peacock's elaborate train to formidable genitalia of male seed beetles, is the result of female choice. But why do females choose among males ...
