The Null Device

Obscure factoid of the day. In cats, there are about four different hair colour patterns which are classified as "tabby". The two most common are the mackerel tabby and the classic tabby. The mackerel tabby is actually the genetically dominant one (breed a mackerel tabby with a classic tabby and you get mostly mackerel tabby kittens), but the classic tabby is much more common in most of the world. Why is this so? This is an artefact of the British Empire. Classic tabbies were more common on the British Isles for some reason, and when the Poms went to America, Australia, India and everywhere else, took their cats with them; and so, a breed of cats colonised much of the world. Isn't history fascinating?

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