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
Second Battle of the Hook Second Battle of the Hook The Second Battle of the Hook was a battle fought between 18 and 19 November 1952 during the Korean War between elements of United Nations troops consisting of British troops of the 1st Commonwealth Division and Chinese forces on a vital sector known as the "Hook" position which was the scene of much bitter fighting before and in the ensuing months. Attacking Chinese forces attempted to take the strategic position but were repelled by a combination of heavy firepower and effective counterattacks. On 14 April 1952 as a result of adjustments under Operation Westminster the