The reasons why orange cats like to bite their ears:
1. When a cat bites its owner’s ear, it may want to play with the owner. The owner can tease it with a cat teasing stick and play with it for a while.
2. When a cat smells a special smell from its owner's ears, such as perfume, it will become curious and start biting its ears.
3. When a cat likes its owner and wants to be close to the owner, it will also bite the owner's ears.
4. When a cat enters the molar period, it will also bite its ears. You can prepare a molar stick for it.
5. When a cat is angry or wants to attract the owner's attention, it will bite the owner's ears.