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
The New Breed (The Outer Limits) The New Breed (The Outer Limits) "The New Breed" is an episode of "The Outer Limits" television show. It first aired on 23 June 1995, during the first season. Dr. Stephen Ledbetter makes a technological and medical breakthrough when he creates a type of tiny machine, known as nanobots, capable of curing any disease or imperfections in the human body. Stephen's best friend Dr. Andy Groenig tells him that he has proposed to Stephen's sister, Judy. Overjoyed at the news, Stephen shows Andy the nanobots and explains what a remarkable breakthrough they are. Later that day Andy discovers that he