The answer is blunt: absolutely not at all . Our cave ancestors were helped to chew roots, raw meat, and other hard foods. But with the passage of time, our diet changed and we began to eat softer foods . Also called third molars, these pieces are scheduled to come in between the ages of 17 and 20. As human teeth are still evolving , experts believe that the wisdom tooth will disappear as food is refined and the size of our jaw shrinks.
What are wisdom teeth for?
Japanese scientists create a 'washing machine for humans'
Can you imagine taking a relaxing bath in a machine that washes you with bubbles, plays relaxing music or videos?
Insect swarms generate as much electricity as a thunderstorm
Swarms of bees can generate an electrical charge of 1,000 volts per meter, a higher voltage density than thunderclouds and electrified dust storms.
This is what the Earth's magnetic field sounds like
The shield that protects our planet sounds 'pretty scary', according to ESA engineers.
Days were only 17 hours long 2.46 billion years ago
It was when the Moon was much closer to our planet. As the centuries pass, the Moon slowly recedes and the length of our day gradually lengthens accordingly.
Women are better at doing crosswords
A new study has revealed that women have a 'small but robust' advantage over time.