If diet is destiny, then modern humans should thank our ancestors for their ability to eat just about anything.
Two new studies peek into the distant past to try to figure out just how big a role food played in human evolution. One says that eating meat made it possible for early human mothers to wean babies earlier and have more children.
The Space Shuttles Discovery and Enterprise stood nose-to-nose at the Smithsonian National Air and Space Museum Stephen F. Udvar-Hazy Center in Chantilly, Va., during a special event today to honor Discovery at its new home.
The Associated Press reports:
Astronauts including former Sen. John Glenn will help deliver Discovery to its retirement as an artifact representing the 30-year shuttle program.
Proponents of the death penalty often argue that the threat of being executed acts as a deterrent that prevents people from committing murder. But those who oppose capital punishment challenge that claim. And some researchers argue that state-sanctioned execution might actually increase homicide rates.
Now, a panel of independent experts convened by the prestigious National Research Council has taken a look at this question and decided that the available research offers no useful information for policymakers.