Natural bobtail

A natural bobtail is an animal's tail which due to a mutated gene grows unusually short or is missing completely.

More than one gene is responsible for tail suppression in cats; research is incomplete, but it is known that the Japanese Bobtail and related breeds have a different mutation from that found in the Manx and its derivatives.

[6][citation needed]In addition the Pembroke Welsh Corgi identified in previous research.

[7] Although the following dogs may present a natural bobtail, the C189G mutation often appeared after decades or centuries of docking, which is considered in many countries, unnecessary, painful, cruel or mutilation.

[8] In countries where docking is banned, natural bobtail dogs must present a certificate to show that their tail is a result of the C189G mutation in order to be shown.