Yma Sumac, the Peruvian soprano famous for her range, has died. Her voice spanned more than four octaves, but why is that so unusual? Many things were considered amazing about Yma Sumac, from her ...

The particular species of bat shares a technique used by only two types of human vocalist – death metal, and Tuvan throat singers. Few human singers can boast a vocal range of more than a few octaves ...