Most source code files hosted on GitHub are actually clones of previously created files, according to a recent study conducted by a joint team of researchers from the University of California, Irvine, the Czech Technical University, Microsoft Research, and Northeastern University.

Researchers looked at 4.5 million original (non-forked) GitHub projects, holding a total of 482 million different files. They found that only 85 million files were unique, or approximately 17.63% of all the analyzed files.

Read the full story at Bleeping Computer.