A picture of a dress went viral yesterday as many debated on its color. Some see it as white and gold, but others see it as blue and lack. According to the person who posted the photo and who is also the owner of the dress, it’s black and blue. So why do people see it in different ways? This displays how human eyes and brains have evolved to see color in a sunlit world.
Alcohol is the highest risk of death, which is then followed by nicotine, cocaine and heroin. Marijuana was discovered to be the least deadly. A few studies have tried to assess the risks of various drugs by looking at how addictive and toxic they are based on the amount of times they were used. The scientists came up with a new risk assessment technique called “Margin of Exposure” (MOE) method.
Scientists are trying to figure out which pieces of DNA are responsible for giving us unique characteristics. They could be closer to figuring that out with the discovery of a DNA sequence that when it was brought to mice, it made their brains 12% larger than those with the same stretch from chimps. It controls the activity of other genes rather than code for a protein. This could lead us to why we have superior brains.
New research, shows how penguins have lost three of the five tastes. This leaves them with only salty and sour. These changes seemed to have happened more than 20 million years ago and researchers don’t know why. They think it could be due to the fact that the receptors involved with tasting didn’t function to do the cold weather.