Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Indoor pollution is 10 times more toxic than outdoor pollution.
62