Scientists have discovered an extinct animal the size of a small squirrel that lived in China at least 125 million years ago and soared among the trees. It is the earliest known example of gliding flight by mammals, and the scientists say it shows that mammals experimented with aerial life about the same time birds first took to the skies, perhaps even earlier.
Until now, the earliest identified gliding mammal was a 30-million-year-old extinct rodent. The first known modern bat, which is capable of powered flight, dates to 51 million years ago, but it is assumed that proto-bats were probably gliding much earlier.
from the New York Times
Archive for December 14th, 2006
In two studies, researchers in Kenya and Uganda enrolled thousands of uncircumcised men to determine if the procedure could reduce HIV transmission among heterosexuals, with some men having their foreskin removed and others remaining intact.
The trial in Kenya, involving nearly 2,800 participants, found that the circumcised men were 53 percent less likely to contract HIV. The Ugandan study, with nearly 5,000 men, showed a 48 percent reduction.
from the Boston Globe
Why stop with the foreskin? Research we are working on will show that castration almost completely eliminates genital transmission of HIV…..