You may be surprised, but most get along very well with cats. Because of the hunting instinct, you do need to make the proper introductions. Once doing so, a Beagle and a cat
can become be friends. Sometimes, this does take a bit of time. One way to know that a dog and cat are going to not fight, is if they ignore each other at first. This means that neither finds the other to be a threat. Then, as time goes by, you will usually find that both canine and feline love to cuddle, play and be "siblings".