Oldest known case of human cancer found
South African scientists claim to have found the oldest known case of human cancer in a 1.7-million-year-old toe bone, National Geographic reports. Scans of the fossil revealed a tumor on the left foot belonging to a human relative, diagnosed as the osteosarcoma cancer. Another fossil in a separate paper, from a 1.98-million-year-old Australopithecus sediba, revealed the oldest known benign tumor.