All articles tagged with #t rex
A study published in the Proceedings of the Royal Society B analyzed 85 dinosaur species and found that tiny arms in T. rex and other giant carnivores are an evolutionary trade-off for increasingly large skulls; as skull strength rose to deliver more bite power, forelimbs shrank across multiple lineages around the world over roughly 180 million years, though their exact function remains unclear.
New fossil-based research argues that Tyrannosaurus rex forelimbs were vestigial—short and not suited for grappling prey—likely evolving for balance or limited support rather than hunting, with the massive skull and jaws doing the heavy lifting.
Polish brand Enfin Levé unveiled a handbag claimed to be made from lab-grown T-rex leather, priced around $600,000 for a Paris auction, but experts question the claim: the Montana fossil tissue sample may be bacterial rather than dinosaur flesh, and the bag’s material reportedly uses AI-generated synthetic collagen blended with chicken proteins, meaning it may be more chicken than dinosaur. If true, it isn’t dinosaur leather, but the episode highlights advances and debate around lab-grown, cruelty-free materials in fashion.
Scientists studying a Hell Creek Formation Edmontosaurus skull found a tooth lodged in its snout, a rare embedded-tooth fossil that lets researchers identify the attacker as Tyrannosaurus rex. CT scans show a frontal bite, the tooth’s serrations match T. rex, and bite marks suggest the predator continued feeding on the head after the kill, implying a direct encounter rather than distant scavenging.
A biomechanical analysis finds T. rex likely moved toe-first, similar to birds, enabling up to 20% faster speeds; a light 1.4-tonne T. rex could cover 100m in about 8.77 seconds, faster than Usain Bolt’s world record, with larger individuals still near 10.5 seconds.
Fossil data from the Dry Mesa Quarry reconstruct a dense Jurassic food web in which abundant hatchling sauropods provided a reliable prey source for large predators, shaping predator dynamics across the Late Jurassic and helping explain how later giants like Tyrannosaurus rex could accumulate calories to grow to enormous sizes.
Recent fossil discoveries suggest that T. rex was not only a land predator but also capable of swimming, supported by evidence of fossilized swim traces and its hollow, buoyant bones, indicating it may have used swimming to expand its feeding opportunities, similar to modern birds like emus.
Recent research has revealed that the small predator previously thought to be a juvenile T. rex is actually a fully grown Nanotyrannus lancensis, rewriting the understanding of dinosaur growth, evolution, and ecosystem dynamics during the Late Cretaceous period, and introducing a new species, Nanotyrannus lethaeus.
A fossil named Jane, previously thought to be a juvenile T. rex, may actually belong to a new species called Nanotyrannus lethaeus, which is smaller and more agile, prompting a reevaluation of tyrannosaur classification.
Scientists have discovered that the 'dueling dinosaurs' fossil actually features a fully grown Nanotyrannus lancensis, not a juvenile T. rex, challenging long-held beliefs about T. rex growth and diversity, and revealing that multiple tyrannosaur species coexisted in the late Cretaceous period.
A fossil previously thought to be a juvenile Tyrannosaurus rex has been identified as a different species, Nanotyrannus, which was a fully grown, agile predator with distinct physical features, prompting a re-evaluation of tyrannosaur evolution.
Fossils initially thought to be juvenile T. rex in Montana are actually a new species, Nanotyrannus lancensis, a small-bodied predator from the late Cretaceous period, providing new insights into dinosaur diversity and evolution.
Scientists have discovered that a famous fossil previously thought to be a juvenile T. rex is actually a different species, Nanotyrannus lancensis, and have identified a new tyrannosaur species, challenging long-held beliefs about tyrannosaur diversity and ecosystem complexity in the late Cretaceous period.
A new, well-preserved tyrannosaur fossil from Montana provides strong evidence that Nanotyrannus is a distinct species, challenging decades of scientific consensus that these small tyrannosaurs were just juvenile T. rex, leading to a major reassessment of tyrannosaur classification and evolution.
Scientists used advanced synchrotron X-ray imaging to discover preserved blood vessels in a T. rex fossil, Scotty, revealing new insights into dinosaur biology, injury healing, and fossilization processes, which could enhance future paleontological research.