Question

Modern birds have feathers and can fly. when paleontologists discovered a fossil of archaeopteryx, a dinosaur with feathers, they suggested perhaps it could fly. what big idea in biology did they apply in this situation?

Answer 1

Archaeopteryx is considered as the missing link between reptiles and Aves

it suggests that Aves evolved from reptiles . the fossil shows that it has both reptilian as well as Avian characters