Are Humans Hardwired to Detect Snakes?

The “snake detection theory” holds that snakes played a significant role in the evolution of humans and other primates. They molded our brains, shaped our visual systems, and helped us survive. Now there is new evidence to back up this unusual theory, which explains both our agile minds and our uncanny ability to… » 10/29/13 11:00am 10/29/13 11:00am

The Mystery of How Identical Twins Develop Different Personalities

Despite having the same genetic makeup, identical twins have their own distinctive personalities. Just how their individuality emerges has remained a bit of a mystery. But now, researchers have found that life experiences affect brain development — and this may help us understand how personalities form. » 5/09/13 11:11am 5/09/13 11:11am

Why a rat's whiskers are a lot like human hands

Rats, like humans, can deduce an impressive amount of information about their physical surroundings with their sense of touch. Humans do this most effectively with their hands and fingertips, while a rat experiences a significant portion of its tactile sensation via its whiskers. What's intriguing about this parallel… » 8/17/12 9:20am 8/17/12 9:20am

You are biologically wired to disagree with [insert political ideology…

Evidence continues to mount that your political leanings are determined, to some extent, by aspects of your biology. The latest installment in this emerging area of research comes from the University of Nebraska, in a study that looks at peoples' responses to certain forms of visual stimuli — politically themed or… » 1/26/12 8:05am 1/26/12 8:05am

What is it about this photograph that makes you feel uncomfortable?

In his principal philosophical work, Being and Nothingness, Jean-Paul Sartre identified the power of the human gaze as one of existential affirmation; to stare into the face of another and not only recognize them as a person, but see them recognize you in return, was to Sartre a necessary interchange in the… » 12/02/11 8:00am 12/02/11 8:00am

Your birth control may be altering your memory

We're all familiar with the power that hormones have over behavior and mood, but did you know that sex and stress hormones can affect how we recall past events? Now, a recently published study has shed light on the memory-altering effects of one of the most widely used hormone-regulating drugs in the world: birth… » 9/09/11 3:58pm 9/09/11 3:58pm