Is our new terrier trying to hurt our cat and ferret or is she just playing?

We just got a terrier and she chases our cat but doesn't growl. She also bit our ferret's tail but it didn't cry so I don't know if she is being aggressive or just playing?

Playing.Dogs bite when they're playing.

Terrier's were bred to chase rats out of buildings originally.Your dog is doing what comes natural to it.

Playin like a playa jk it's just natural instinct

It could be both, terriers as a breed tend to be somewhat prey driven but that is because that is what most terriers were born to do, chase prey. I have two Rat Terriers and they chase my cats but do not hurt them.my suggestion would be to keep an eye on the level of aggression that she or he is using when going after the cat and ferret. Watch for growling, hair on the back of the neck standing up, and last but not least level of distractibility when chasing,

its doing its job make sure the pup lays down and hold him down and let the ferret sniff the terrier that way it will see it as a friend instead of a foe

Pretty sure the ferret would be dead by now if the dog meant for that to be.

Terriers are hunters, so she is playing with your ferret and using her insticts to bite it. You always have to supervise a ferret with a dog. My terrier also tries to bite my ferret, but we make sure he doesn't anymore and my boxer guards her (its interesting to watch!). Also, your dog is probably very curious about your cat and is trying to play with it. You shouldn't be worried about agression but supervise her.

I highly suggest you do not allow interaction between the terrier and the ferret. I guarantee, you will come home to a dead ferret.Terriers were bred as hunting dogs, they kill small critters. It's instinctive.

one of my puppies is a terrier, she is so playful. She used to play with my cat (R.I.P) . they sleep together and i find it cute.

YIKES! A terrier breed is NOT a type of dog you should have around a ferret! They're very prey driven and can easily injure or even kill a ferret. Please do NOT allow this dog around your ferret.