5 liens privรฉs
Deux fossiles de dents vieilles de 145 millions d'annรฉes ont รฉtรฉ dรฉcouverts dans le Dorset, en Angleterre. Elles nous renseignent sur lโorigine des mammifรจres modernes.
In films such as Jurassic World, predatory dinosaurs are typically shown giving off a fearsome roar before unleashing carnage on their unsuspecting victims, but a new study published online in the journal Evolution indicates that they may have actually sounded quite different.
โTo make any kind of sense of what nonavian dinosaurs sounded like, we need to understand how living birds vocalize,โ said study co-author Julia Clarke, a professor at the Jackson School of Geosciences. โThis makes for a very different Jurassic world. Not only were dinosaurs feathered, but they may have had bulging necks and made booming, closed-mouth sounds.โ