The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
Your body is creating and killing about 2.4 million red blood cells per second.
17