I say these powers are throw- backs to the past-mental equivalents of vestigial tails!

They have a vestigial tail and index finger.

He guessed it was a vestigial tail.

Like other slow lorises, it has a vestigial tail, round head, and short ears.

The koala is a stocky animal with a large head and vestigial or non-existent tail.

It has a cranium covered by thick, blue fur that continues in a narrow strip along the spine to the vestigial tail.

The vestigial tail is almost completely absorbed.

A true Betan type even down to the vestigial tail.

Capybaras have slightly webbed feet and vestigial tails.

But the narrator, who has claws instead of toes, is forced out into the world in search of his sister, who has a vestigial tail.