Giant sloths and mastodons lived with ancient humans in the Americas
SAO PAULO (AP) — Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric…
Researchers May Have Pinpointed Origin of Hope and Koh-i-Noor Diamonds
The Hope and Koh-i-Noor diamonds—two of the most famous Golconda diamonds—may have come from…