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 ...
An X-ray nanotomography reconstruction of the intermedial cartilage of a blacktip shark. The colors indicate the thickness of the struts, with red representing thicker areas and blue indicating ...
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 ...
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