Some dinosaurs could rise like giants until they grew too big

Researchers have found that two South American sauropod species were well-suited for standing on their hind legs, particularly when they were young. Digital tests revealed that their robust femurs could handle enormous forces, allowing them to rise up like giants. This upright pose may have provided several advantages, including accessing treetops, intimidating predators, and impressing potential mates. The ability to stand on their hind legs was likely lost as these dinosaurs grew to larger sizes.

✦ AI-generated summary