9 month female JRT change in temperment
My 9 months old female JRT Miley has suddenly changed her temperament. She used to be so friendly and chilled but very active. Now all of a sudden she has become really narky. She growls if anyone goes near her sometimes even nipping. She has also started to attack our older dog if she comes near us. We dont know why she is doing this or how to stop it.
Can someone give us some advice please really desperate!!