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
Third Battle of the Hook Sami Creek, a tributary of the Imjin River near Kaesong. There had been two previous engagements at the Hook earlier in the Korean War during 1952 when first the United States Marine Corps in October, and later the Scottish Black Watch regiment, had successfully held the Hook against Chinese assaults upon their arrival the following month. This ridge was a place of tactical importance in the Commonwealth sector: it was a potential attack point which the Chinese needed to take before assaulting Yong Dong, and opening up an invasion route to Seoul, the South Korean capital. On 13 May 1953,