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
Osteonecrosis of the jaw is unlikely to occur until this form of ONJ is better understood, there have been clinical reports of some improvement after 6 months or more of complete cessation of bisphosphonate therapy. ONJ is not a new disease: Around 1850 forms of "chemical osteomyelitis" resulting from environmental pollutants, such as lead and the white phosphorus used in early (non-safety) matches (Phossy jaw), as well as from popular medications containing mercury, arsenic or bismuth, were reported in the literature. This disease apparently did not often occur in individuals with good gingival health, and usually targeted the mandible first. It was associated with