Searching for and finding fossils in such a large area is another difficult problem. One solution has been to organize all persons present into a group to sweep a designated area. Richard Leakey devised a method that produced better results: he organized and trained a search team of Kenyans, which became known as "the hominid gang", under the leadership of Kamoya Kimeu. They have discovered the majority of the fossil Hominins, which currently amount to over 200.