1. Astronomers suggest that 10 billion earth-like planets may exist in our galaxy.
2. Nearly 1 out of every 5 Americans are considered to be illiterate.
3. When cats hiss, they are instinctively reproducing the sounds of other dangerous animals such as snakes.
4. Humans were built to walk barefoot! That’s why most shoes are bad for your health!
5. The smell of freshly cut grass is actually the scent released by plants in distress.
