What is the common way to distinguish the Manx cat because of the cat body-type mutation?
Cat body-type mutation Cats, like all living organisms, occasionally have mutations that affect their body type. Sometimes, these cat body-type mutations are striking enough that humans select for and perpetuate them. This is not always in the best interests of the cat, as many of these mutations are harmful; some are even lethal in their homozygous form.
Deer of Great Britain There are six types of deer living wild in Great Britain: the Scottish red deer, roe deer, fallow deer, sika deer, Reeves's muntjac, and the Chinese water deer. Of those, Scottish red and roe deer are native and have lived in the isles throughout the Holocene. Fallow deer have been reintroduced twice, by the Romans and the Normans, after it died out in the last ice age. The other three are escaped or released alien species.