The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Your brain is 80% water.
525
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Pure water (H2O) does not conduct electricity on its own.
46