The name “raptor” isn’t the only thing that members of this group share with birds; some fossils, like those fromSinornithosaurus
] was one of the earliest members of this group, both in the family tree and in time,” Poust says. Other Dromaeosaurs have dots on their bones where feathers likely would have attached. It’s unclear, however, whether any Dromaeosaurs could fly or glide. It’s possible that some of the smaller, earlier members — like— could fly. Regardless, Poust says they might have still used their feathers for mobility when running straight up walls or trees, for example.could fly. “As soon as these animals start getting too large, they seem to abandon this skill,” Poust says. This is also true of modern-day ostriches, who lost the ability to fly over evolutionary time.
Larger Dromaeosaurs still retained feathers, though. Some, whose feathers stuck out from their back legs, for example, might have used them as displays.Though some went extinct earlier, Dromaeosaurs as a group persisted for quite a long time. Some members of the group lived up until“The group may have witnessed the rise of birds, existed for 100 million years, and succeeded for longer than the duration of the age of mammals,” Poust says.
While likely not a direct ancestor to modern birds, the whole group of Dromaeosaurs is still closely related to them and other species in that evolutionary trajectory, like
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