Can you tell the difference between twin cats?

The owner of these charming ginger tabby twin cats says: "People always ask how I can tell my cats apart; and I can never answer how. I just know. Reddit do you spot any differences I can point out to people?"

Well, you can see the faint difference in the 'M' tabby mark on the forehead. It is not a huge difference obviously but there is one. And the cat on the right looks slightly more feminine to me. The owner does not say if they are males or females. 

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That is interesting, as it is part of the problem of identifying domestic cats. Can you tell the gender of these twins? They look male to me but I am not sure. Can you always tell a female from a male? I can't. There are often clues, the biggest of which is the size of the cat. And I believe a cat's face can look more masculine or feminine.

Twin ginger tabbies. Photo: u/Lazy-Squish on Reddit.

Between these two, there will be some differences in behaviour I expect. This should help the owner to distinguish between them. I'd expect it to be rare for a good cat owner to fail to be able to distinguish twin cats from each other but it probably happens from time to time. It'll be a spur of the moment mistake, I'd expect.

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