JERUSALEM, Jan. 20 (Xinhua) -- Israeli and Italian researchers have discovered that early humans about half a million years ago used stone chopping tools to break animal bones and consume the bone marrow, Tel Aviv University (TAU) in central Israel said on Wednesday.
In their study, published in the journal PLOS ONE, researchers from TAU and the University of Rome, in collaboration with the University of Tubingen, Germany, found that the tools were used to break open bones of cattle, fallow deer and gazelles, and extract the nutritious high-calorie bone marrow.