Sectoral heterochromia iridum- a good example in a cat

Sectoral heterochromia in a cat

I think this is an excellent, even dramatic, example of sectoral heterochromia iridum in a domestic cat. It is normally referred to as ‘sectoral heterochromia’. Heterochromia is when the eyes are different colours. We sometimes call this “odd-eye” colour. The phrase ‘sectoral heterochromia’ means that the difference in colours occur across one eye, as …

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Would the house cat get a medal in the Olympics 100m?

Domestic cat is faster than humans and faster than Usain Bolt

We can’t be absolutely precise but the standard house cat would make the Olympic final and probably get a medal, even a gold. It would be about keeping her on track! And not making a false start! The best moggies can run at around 30 mph (48 kmph). Let’s be conservative and say a …

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Nice photo of a cat’s claws with whiskers in the background

Good photo of a cat's claws

This nicely visualised photo of a cat’s claws with whiskers in the background caught my eye today. It is important to celebrate the anatomy of the domestic cat. A cat’s claws are a major part of the cat. They are not an annoying piece of anatomy to be removed at the whim of the …

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Adrenal glands of domestic cats produce small amounts of testosterone

Adrenal glands of domestic cats

I have spent a considerable time this morning trying to work out why neutered male cats still hump (sometimes). My cat does it. So where does this sex drive come from? A male cat’s testicles produce testosterone which motivates a male cat to have sex. The neutering operation removes the testicles. Does this mean …

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Picture of brown spots in a cat’s eye (iris melanosis)

The eyes of a 21-year-old cat with iris melanosis - iris freckles

This is an excellent example – I would say an extreme example – of iris melanosis in the eyes of an elderly cat. The picture caught my eye (excuse the pun). It comes from the Reddit.com website on which a member of that site (u/lilbeewin) posted a picture of her cat with the title: …

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