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 the 1st Battalion the Duke of Wellington's Regiment (the "Dukes") were moved from its position on Yong Dong, to relieve the Black Watch, who had been defending The Hook. During this period, the Black Watch had suffered 12 soldiers killed, 73 wounded and 20 missing. Over the next two weeks The Dukes were under constant sniper, mortar and artillery fire. This was then followed up in a major action over the 28–29 May following heavy initial artillery and mortar fire, after which the Chinese infantry attacked in force. Between 19 May and 29 May 'The Dukes' suffered 15 killed in