Obvious studies of the year

After posting some retracted science stories, here are some true ones. SciAm reports:

Nonetheless, some studies really take the cake in the "duh" department, discovering things that were already obvious. Here are findings from this year that should come as little surprise.

1. Unsafe sex is more likely after drinking
2. Men appear confident by suppressing fear, pain and empathy
3. Smoking pot and driving isn't safe
4. Pigs love mud
5. Fashion magazines glorify youth
6. People with generous partners have happy marriages
7. Parents don't think their kids are doing drugs
8. People aren't doing anything in particular on the Internet
9. Restricting driver's licenses decreases teen fatalities
10. Most shoppers ignore nutrition labels

A reader adds:

You missed the article that said, The first humans out of Africa engaged in interbreeding for tens of thousands of years. That article was just plain stupid.

Maybe obvious, but it is still a minority view. The mainstream idea has been that humans came out of Africa, and have not evolved since then.