Giant Otter juvenile, Cuiba River, Near Porto Jofre ... The River Showdown between the otter and crocodile is a reminder that anything can be accomplished with enough tenacity and courage. Humans have ...

As more people experience the climate crisis through water, from too much or too little rainfall and snowmelt. This can lead ...

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 ...

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 ...

"Some of the most tantalizing clues come from an archaeological site in central Brazil called Santa Elina, where bones of giant ground sloths show signs of being manipulated by humans. Sloths like ...

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 a long time ...

(Júlia d’Oliveira via AP) This photo provided by researchers shows fossils at the excavation site of Arroyo del Vizcaíno in Uruguay, where researchers have found evidence suggesting human occupation ...