It is noted that over the past 20 years researchers have been studying sites in the Upper Galilee where flint was mined and tools were made. These sites date back to the Lower Palaeolithic period about 3.3 million years ago. This is where the ancient human ancestors Homo erectus created tools and left gifts, but until now it was unknown why they repeatedly visited these sites, as the flint used to create tools could be found elsewhere.
To figure this out, the experts correlated these sites with elephant migration sites at the time, and they found that all the sites they studied overlapped with the migration routes of these animals. The scientists emphasised that elephants were one of the key food sources for early humans, and they guessed to follow their migration routes to provide food for themselves.
