Ancient Flying Creature Caught Prey 120 Million Years Ago

A fossil discovered in northern China has provided unprecedented insights into a prehistoric gliding creature that hunted birds 120 million years ago, according to a study published in the journal *Nature Communications*. The specimen, recovered from the Jiufotang Formation, belongs to a previously undocumented species of dromaeosaurid, a group of feathered theropod dinosaurs known for their agility and predatory adaptations.

Researchers from the Chinese Academy of Sciences and the University of Calgary analyzed the fossil using high-resolution CT scans and comparative anatomy. The creature, named *Xingxiulong chengi*, exhibited elongated forelimbs and a specialized tail structure that suggest it used a gliding mechanism to ambush prey. Unlike modern birds, which rely on powered flight, *Xingxiulong* likely launched itself from elevated perches, using its wings to descend rapidly onto unsuspecting avian targets.

The discovery challenges previous assumptions about the evolutionary pathways of flight. While most gliding animals, such as flying squirrels or colugos, are arboreal, *Xingxiulong* appears to have bridged terrestrial and aerial hunting strategies. This adaptation may have allowed it to exploit ecological niches now dominated by birds, offering a glimpse into the competitive dynamics of the Early Cretaceous period.

Lead researcher Dr. Xiaolin Wang noted that the fossil’s preservation of soft tissues, including feather impressions, provided critical evidence for its gliding capabilities. “The arrangement of feathers on its arms and tail resembles the aerodynamic structures seen in modern gliders,” Wang said. “This suggests that flight evolution was more diverse than previously thought, with multiple independent adaptations emerging across different lineages.”

The Jiufotang Formation, famous for its well-preserved fossils of feathered dinosaurs and early birds, continues to yield clues about the transition from ground-dwelling predators to aerial hunters. Paleontologists emphasize that *Xingxiulong*’s existence underscores the complexity of prehistoric ecosystems, where dinosaurs and birds coexisted in intricate predator-prey relationships.

Further analysis of the fossil is scheduled to begin in early 2024, with a focus on reconstructing its biomechanics. The findings will be presented at the annual meeting of the Society of Vertebrate Paleontology, where experts will debate the implications for understanding the origins of flight in non-avian dinosaurs.