Four enormous three-toed footprints discovered in southwestern North Dakota provide the first known trackway attributed to an adult Tyrannosaurus rex, according to reports from The Guardian and Good Good News Network. Preserved in ancient mud about 66.5 million years ago within the Hell Creek Formation, the 23-foot trail reveals an animal moving at a brisk … Read more
Archaeopteryx may have achieved sustainable flight speed by using two or three powerful hind-leg leaps rather than a single jump, according to new research published on August 5, 2026, in Developmental Biology. Living about 150 million years ago, the reptile-like creature combined traits of non-avian dinosaurs and modern birds, presenting scientists with a century-old mystery … Read more
Newly discovered fossil remains from Maranhão state in northeastern Brazil belong to Dasosaurus tocantinensis, a previously unknown titanosauriform sauropod that reached approximately 20 meters in length and lived roughly 120 million years ago, according to a study published in the Journal of Systematic Palaeontology. Researchers state that its closest known relative inhabited what is now … Read more
Modern-day crocodiles and birds share a common archosaur ancestor that survived the Permian-Triassic extinction event roughly 250 million years ago, according to paleontologists. New research reveals that unlike long-held scientific assumptions that warm-bloodedness only evolved once toward avian lineages, ancient crocodile forebears also possessed a warm-blooded physiology until the Chicxulub asteroid impact roughly 66 million … Read more
A newly discovered sauropodomorph dinosaur named Musango matusadonaensis lived approximately 210 million years ago near Lake Kariba in Zimbabwe, according to paleontologists. Discovered on the Zimbabwean shores of the manmade reservoir, the fossil sheds new light on the diversity of Triassic and Jurassic ecosystems in southern Africa, as detailed in a paper published in the … Read more
Baby Tyrannosaurus rex hatchlings weighed just 5.5 pounds and hunted like miniature apex predators right out of the shell, according to a study published in the journal Biology. Paleontologists analyzing newly examined fossils from T. rex and its close cousin Gorgosaurus libratus found dental and vascular evidence showing that infant tyrannosaurids were active and lethal … Read more
The Permian-Triassic extinction, known as the “Great Dying,” eliminated 96% of marine species 252 million years ago due to rapid ocean warming and oxygen depletion. According to a Stanford-led study published in Proceedings of the National Academy of Sciences, the event favored mobile, high-metabolism animals like mollusks over stationary, low-metabolism groups like brachiopods, permanently reshaping … Read more
Fossils of Spriggina floundersi from South Australia may provide the oldest known evidence of population-wide “handedness” in the animal kingdom, according to a study published in Scientific Reports. Researchers found that these 550-million-year-old organisms exhibited a statistically significant preference for turning in one direction over the other, suggesting a complex nervous system existed long before … Read more
A rare 450-million-year-old fossil of the crinoid Dendrocrinus simcoensis, recently rediscovered in a Montreal museum collection, has provided scientists with the second-ever known example of preserved soft tissue in an ancient crinoid. According to a study published in Royal Society Open Science, the specimen’s preserved tube feet offer a rare window into how these early … Read more
Evolutionary biologists are moving past the traditional “obstetrical dilemma” to explore how primate pelvic anatomy, bipedalism, and brain size interact. Recent research indicates that the tension between narrow birth canals and large-headed infants is managed through diverse biological and social strategies, rather than a simple evolutionary conflict. Is the “obstetrical dilemma” still the standard model? … Read more