Possible Clues:

• Bones of sailor shortened by injury at work?
• Sailors must have source of iodine for these bones
• Bones sailors primarily identified
• Topless celebrity with silicone body parts
• Is heel turned over to reveal bones in the foot?
• Rita's scrambled ankles?
• Bones of the human ankle
• Bones starts to run as Spock is taken ill
• Bones one small animal from the rear