Sclera in lobe-finned fishes, various reptiles, and birds. The ring has disappeared in many groups, including living amphibians, some reptiles and fish, and all mammals. The eyes of all non-human primates are dark with small, barely visible sclera. The collagen of the sclera is continuous with the cornea. From outer to innermost, the four layers of the sclera are: The sclera is opaque due to the irregularity of the Type I collagen fibers, as opposed to the near-uniform thickness and parallel arrangement of the corneal collagen. Moreover, the cornea bears more mucopolysaccharide (a carbohydrate that has among its repeating units a
101 Things Removed from the Human Body 101 Things Removed from the Human Body 101 Things Removed from the Human Body and 101 More Things Removed from the Human Body is a British "shockumentary" series directed by Eric Schotz, which is narrated by Mitch Lewis. The program features tales of foreign objects that have been removed from human bodies in the form of a countdown from 101 to 1. Items included are javelins, a boat anchor, a bicycle pump, a bag of nails, an ice pick, and a human body. The documentary series was first broadcast on Sky One in October 2003. When the show was re-broadcast