iPhone frequently used emojis haven’t been used. Why the change? iOS 16.0.3

Looking for an answer as to why my iPhone shows these emojis as frequently used. I haven’t used these but I remember setting them to my preset animal emoji or whatever when I set up my keyboard. It’s an iPhone 14 on iOS 16.0.3. Generally it shows just the normal emojis I use but today it left open the tab as shown with the three periods bottoms right. When I click the 3 periods it takes me to a mouse emoji and options for others of the unicorn style. My question is - why do these show as frequently used when I’ve never used these emojis? Any input is helpful. Thanks!

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Title

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