Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The smell of freshly cut grass is actually a plant distress call.
31
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Pumice is the only rock that floats on water.
14
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15