Charles Darwin was familiar with the concept of vestigial structures, though the term for them did not yet exist.

The ligament of Marshall (a vestigial structure with marked autonomic activity) is removed.

There is only a vestigial claw-like structure that might be of some assistance in digging.

Strong evidence for common descent comes from vestigial structures.

However, vestigial structures may have their original function replaced with another.

The presence of these kind of vestigial structures is known as an atavism.

The developmental tail is thus a human vestigial structure.

During evolution, some structures may lose their original function and become vestigial structures.

A strong and direct evidence for common descent comes from vestigial structures.

They were once thought of as vestigial structures that served no real purpose.