7 Vestigial Features of the Human Body
Palmar Grasp Reflex: The palmar grasp reflex is a characteristic behavior of human infants, developing as early as 16 weeks.
Tails: In the sixth week of gestation, the human embryo possesses a tail, complete with several vertebrae.
Wisdom Teeth: As the human species migrated out of Africa, it came to populate a variety of habitats.
Nictitating Membrane: The plica semilunaris is a fold of conjunctiva at the inner corner of the human eye.
Auricular Muscles: The auricular, or extrinsic, muscles of the human ear include the anterior auricular muscle.
Palmaris Longus Muscle: Research has indicated that the palmaris longus, a thin strip of muscle running between the wrist and the elbow.
Pyramidalis Muscle: The pyramidalis muscle is a paired, triangular-shaped muscle that, when present, is located in the lower abdomen.