Chas Alaimo on Instagram: "AI Overview +12 While some might think they look prehistoric, crocodiles are not modern-day dinosaurs. The real modern-day dinosaurs are birds [1, 2]. Birds are a living subgroup of mostly flighted paravian theropod dinosaurs, characterized by features such as feathers, beaks, and wings [1]. Dinosaurs were the dominant terrestrial vertebrates for over 160 million years, from the Late Triassic period (about 233 million years ago) until the end of the Cretaceous period (