Monday links

Yesterday was the anniversary of the Wright brothers' first flight in 1903.

Why Is Your First Instinct After Hurting Your Finger to Put It in Your Mouth?

The Scientific American Guide to Cheating in the Olympics.

How to Have a British Christmas.

So, it's not just humans - High-Ranking Male Primates Keep Wafting Their Sex Stink at Females, Who Hate It.

5 Things You Can Tell Just By Looking At Someone: Backed By Research.

ICYMI, most recent links are here, and include how rats conquered New York City, a ‘smart condom’ that will give you more insight into your sex life than you (probably) want, and calculations showing that, if spiders worked together, they could eat all the humans in a year.