You might think you know yourself, but you’re wrong. Scientists who study how the brain shapes identity and behavior say that we are actually quite unaware of who we really are. Much of what drives our actions and shapes our personality is unconscious.
There's 1 redhead 1 brunette and 1 blonde. Their all at the NASA space center. The redhead says to the flight technician "I want to go to the moon". The flight technician says she can go tomorrow. The brunette says "I want to go to Mars". He says she can go next week. The blonde says "I want to go to the sun". The flight technician says, "Don't you know you'll burn up?" The blonde says "Well then I'll go at night."
Jessica Biel or Megan Fox? The question of why we want the things we want elicits impassioned answers from scientists in a number of different disciplines, but some argue we’re still a long way away from understanding our desires and preferences in any meaningful way.
DNA forensics puts poachers in the crosshairs.About 23,000 African elephants were killed by poachers last year, and the death count is on the rise. Alarmed by the loss, University of Washington conservation biologist Samuel Wasser decided to fight back. He and his colleagues have painstakingly created a DNA-based map of the distribution of African elephants.
Then, borrowing a few tricks from forensic dentistry, he devised a method for extracting DNA from seized ivory, which can be compared with his map to pinpoint exactly where elephants are being killed.