Unlike most mammals, mature male orangutans exhibit different facial characteristics: some develop large 'cheek pads' on their faces (as shown above); other males do not. A team of researchers studied the difference in reproductive success between cheek-padded males and males without cheek pads. They found that those with cheek pads are significantly more successful in fathering offspring.

Source: http://link.springer.com/article/10.1007%2Fs00265-015-1991-0 ...

It's true, Brazil’s Lençóis Maranhenses National Park harbors a coastal dune field that floods during the wet season, January to May. The park’s creamy sand and sparkling water - rains trapped in ribbons of dunes - shelter nesting birds, turtles, and fish.

Source: http://travel.nationalgeographic.com/travel/365-photos/dunes-lencois-maranhenses-national-park-brazil/ ...

Did you know that McDonald's famous burger, the Big Mac, contains addictive ingredients inside its bun? Yes, it's true, the bun isn't as harmless as your probably thought.

The Big Mac bun contains high levels of high-fructose corn syrup and sodium. Both ingredients are addictive, and therefore make your body crave more of them. These ingredients are also harmful and can cause obesity, diabetes, and heart disease, BUT not directly. Remember, the higher sweetness of high-fructose corn syrup increases craving and consequently the amount consumed. Obesity isn't caused by diet alone - when combined with decreased physical activity, that is when it contributes to the weight gain epidemic and personal health problems.

It's no wonder homemade burger ...