The one-of-a-kind Christmas display used 100,000 biodegradable balloons, and it took a 20-person team almost a week to build.

Imagine a world where colossal creatures roamed the land, coexisting with early humans. This was the reality in the Americas, where giant sloths and mastodons thrived alongside our ancestors for ...

SAO PAULO (AP) — Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws. For ...