Ice Age people living in Europe 15,000 used to communicate.
I, you, we, man and bark are still in use today - and found there was even a word for mother.
The researchers even show that complete sentences could still be understood today.
Where Europe's language came from: The 'common words' point to the existence of a linguistic super-family tree that unites seven major language families of Eurasia.
Read more: The ice age 'superlanguage' Europeans spoke 15,000 years ago