The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
A scorpion can hold its breath for up to 6 days.
19
Some British police cars carry a teddy bear to console children after an accident.
46
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
12
The hands of the clock on the back of the $100 bill are set at approximately 4:10.
72