Which bird trait is an adaptation that is probably less well developed in flightless birds such as penguins and ostriches?

Question

Quizplus · Accepted Answer

Honeycombed bone structure is an adaptation that reduces weight while maintaining strength, which is crucial for flight. In flightless birds like penguins and ostriches, this trait is likely less developed because they do not need to minimize weight for flight.

Which Bird Trait Is an Adaptation That Is Probably Less