(CNN) Black cats get a bad rap, especially during Halloween season, when they're associated with witches and other scary things that go bump in the night.

It sounds like spooky fun, but their reputation as an omen of bad luck has real consequences. Experts say black cats are less likely to be adopted and some people even harm them.

National Black Cat Day aims to eliminate the stigma by celebrating black cats for the cute, loveable, furry friends they are.

Here are five things everyone should know about black cats:

In some cultures, black cats are good luck

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