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Gheara a fost studiata de cercetatorii de la Universitatea din Bristol, Marea Britanie si a fost atribuita unui exemplar din specia Jaekelopterus rhenaniae, care a trait in urma cu 390 milioane de ani. Specialistii considera ca era utilizata de animal pentru a prinde prazile care ii serveau drept hrana, probabil, in cea mai mare parte, pesti.
Sursa: New Scientist
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