Settle a bet

To: Derek Mooney
(Subject: One Eyed Animal)

Dear Derek,

I was just wondering if you could settle a bet for me. Is it true that the only naturally occurring one eyed animal is the one eyed trouser snake?

My friend Geraldine says this is true but my neighbours cat only had one eye when she was born so does this make it not true.
Below is a picture of my neighbours cat Toby.

Yours Martina Mary O’Connor

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