A remarkably preserved 150-million-year-old shark fossil is forcing researchers to reconsider how modern sharks evolved. The species, Bavariscyllium, displays a mix of features that do not align with ...
When we imagine plants and animals from the deep past, we are necessarily doing so with incomplete information. A quick comparison of dinosaur illustrations from today and a few decades ago will ...
A strange prehistoric shark that lived during the age of dinosaurs is giving scientists new clues about how modern sharks evolved — and raising fresh questions at the same time. The small shark, known ...
Add Yahoo as a preferred source to see more of our stories on Google. © Dmitry Bogdanov / CC BY 3.0 A richly biodiverse ocean during the Late Cretaceous period ...
A newly examined prehistoric shark from the age of dinosaurs provides surprising insights into the early evolution of modern sharks. It cannot be confidently assigned to any shark order that exists ...
Research has shown that pelagic sharks tend to have longer, narrower fins compared to their benthic relatives, which typically possess shorter, rounded fins. A key to understanding how sharks navigate ...
Most shark fossils are just teeth—their cartilage skeletons usually decay long before they can fossilize. But in northwestern Arkansas, a series of geological sites known as the Fayetteville Shale has ...
More than 100 million years ago, scientists say, warming seas and reduced oxygen may have sent some sharks higher into the water column, where they evolved to be fierce and hungry. By Jeanne Timmons ...
More than 300 million years ago, much of what is now Arkansas lay beneath a shallow sea. Today, that ancient seafloor has ...
Researchers investigated how the jaw shape of sharks has changed over the course of evolution. Their conclusion: in the most widespread shark species, the jaws show relatively little variation in ...
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