English Language · English

The passage given below is followed by four alternative summaries. Choose the option that best captures the essence of the passage. The prevailing scientific consensus today posits that birds are not merely descendants of dinosaurs, but are, in fact, living dinosaurs themselves. This revolutionary reclassification, which emerged from meticulous paleontological and genetic research over the past few decades, overturned the traditional view of dinosaurs as exclusively large, scaly, extinct reptiles. Key evidence supporting this claim includes shared skeletal features, particularly in the hip and wrist bones, and the discovery of feathered dinosaurs. Archaeopteryx, a Jurassic-era fossil, serves as a crucial transitional form, exhibiting both reptilian and avian characteristics. Furthermore, molecular phylogenetics has reinforced the deep evolutionary connection, placing birds firmly within the Maniraptora clade, a group of theropod dinosaurs. This understanding reframes dinosaurs not as a bygone era, but as a lineage that adapted, survived the Cretaceous-Paleogene extinction event, and continues to thrive in the form of birds, demonstrating an incredible evolutionary success story. Which of the following best captures the essence of the passage?