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
A cow produces around 200,000 glasses of milk in her lifetime.
373
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31