Kype Kype A kype is a hook-like secondary sex characteristic which develops at the distal tip of the lower jaw in some male salmonids prior to the spawning season. The structure usually develops in the weeks prior to, and during, migration to the spawning grounds. In addition to the development of the kype, a large depression forms in the two halves of the premaxilla in the upper jaw, allowing the kype to fit into the premaxilla when the mouth is closed. The kype functions as a secondary sexual characteristic and influences the formation of dominance hierarchies at the spawning grounds. The
March of the Penguins open water where the penguins can feed. However, by the end of winter, the breeding ground is over away from the nearest open water. To reach it, all the penguins of breeding age must traverse this great distance. The penguins practice serial monogamy within each breeding season. The female lays a single egg, and the co-operation of the parents is needed if the chick is to survive. After the female lays the egg, she transfers it to the feet of the waiting male with minimal exposure to the elements, as the intense cold could kill the developing embryo. The male