🇹🇭 Siamese

Thai cat breed

Origin: From Siam (Thailand). The first Siamese known in the USA was a gift from the US consul in Bangkok to First Lady Lucy Hayes, arriving in 1879. 📎 White House Historical Association · first Siamese
Looks: Modern show Siamese were bred long and slender with a wedge-shaped head — quite unlike the rounder Wichien Maat. 📎 CFA · Siamese
Coat & genes: Colourpoint (the heat-sensitive TYR gene); blue eyes. 📎 OMIA · colourpoint / sepia (TYR)
Lifespan: UK vet records: life expectancy at birth 11.7 years (all cats 11.7). 📎 Teng et al. 2024 · VetCompass UK life tables
Registries: Recognised by every major registry (CFA, TICA, FIFe, GCCF). 📎 CFA · Siamese · FIFe · recognised breeds · GCCF · cat breeds
Temperament (research): Studied in the "Oriental" group (Siamese, Oriental, Balinese, Seychellois): with the Burmese the most likely to groom excessively, and with the Persian the most likely to have a behaviour problem reported by the owner. 📎 Salonen et al. 2019 · Scientific Reports
Temperament (owners often say): vocal and attention-seeking

🩺 Welfare & health

Retinal degeneration (rdAc) is common in the breed: about a third of the gene copies in North American and European Siamese carried it in a 2010 study. A DNA test exists. Amyloidosis is also reported. 📎 Menotti-Raymond et al. 2010 · rdAc in Siamese · CFA · Siamese

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