Input (grade 11): Paranthropus boisei was discovered by Mary Leakey on July 17, 1959, at the FLK Bed I site of Olduvai Gorge in Tanzania (specimen OH 5).
Output (grade 9): Paranthropus boisei was discovered by Mary Leakey in July 1959 at the site of Olduvai Gorge in Tanzania.