Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Iron weighs more after it rusts.
68
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65