A study by Leiden University has revealed that Neanderthals operated "fat factories" as far back as 125,000 years ago. The discovery suggests that the inhabitants strategically selected the lakeside location for the factory and harvested bone marrow through a process of crushing and heating. The practice was largely credited to Henry Ford in 1913, but humans understood the mass production practice long before. The research adds to decades of previous research at the Neumark-Nord archaeological site near Leipzig, Germany. The findings place estimates of advanced resource collection thousands of years earlier than previously thought.