Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Balsa wood is classified as a hard wood!
41
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One cubic foot of gold weighs more than 1,200 pounds!
78