Why do Some Rabbits Have Lop Ears?

Why do some rabbits have lop ears? Is it passed on from parents? Let's all appreciate the many stances rabbit ears can take!

I'm in need of help. My mother's rabbit has one ear lifted up

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Miniature Lop - Wikipedia

Why do some rabbits have longer ears than others? Are they from

Lop rabbit - Wikipedia

Treatment & Prevention of Ear Disease in Lop-Eared Rabbits

What's with the floppy ears? Rabbit Talk - Meat Rabbit & Farming Forum