Kype and/or characteristics that could be of importance in inter- and intra-sexual evaluations of individual quality. The size of the kype is believed to determine male spawning frequency. The extinct sabertooth salmon, "Oncorhynchus rastrosus", was first named for its prominent premaxillary dentition. It possesses an enormous conical tooth on each premaxilla. There is no visible kype on the dentary, implying a different strategy for forming mate dominance. 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
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,