deeply-scooped

Updated: May 6, 2025

In such cases, and many others could be given, habits have changed without a corresponding change of structure. The webbed feet of the upland goose may be said to have become rudimentary in function, though not in structure. In the frigate-bird, the deeply-scooped membrane between the toes shows that structure has begun to change.

Charles Darwin - On the Origin of Species by Means of Natural Selection : or the Preservation of Favoured Races in the Struggle for Life. (2nd edition)

In such cases, and many others could be given, habits have changed without a corresponding change of structure. The webbed feet of the upland goose may be said to have become rudimentary in function, though not in structure. In the frigate-bird, the deeply-scooped membrane between the toes shows that structure has begun to change.

Charles Darwin - On the Origin of Species By Means of Natural Selection, or, the Preservation of Favoured Races in the Struggle for Life