Here's why:
* Ears back can mean different things: While it can signal anger or aggression, it can also indicate fear, anxiety, or even concentration.
* Look at the whole picture: Pay attention to the cat's overall body language. For example, are they hissing, growling, or showing their teeth? If so, that's a clear sign of aggression.
* Consider the situation: A cat might put its ears back if it feels threatened or startled.
Here are some other signs of a potentially aggressive cat:
* Dilated pupils: This indicates arousal and can signal aggression.
* Stiff tail: A stiff or raised tail often means a cat is feeling threatened.
* Flattened ears: This, combined with other signs, can signal aggression.
* Lip lifting: This shows teeth and can be a warning sign.
* Hissing or growling: These are clear signs of aggression.
It's best to avoid interacting with a cat that shows signs of aggression. Instead, try to create a safe and calm environment and give them space. If you're unsure about a cat's body language, it's always a good idea to consult a veterinarian or a feline behaviorist.