Hi I’m Lisa and I bought two guinea pigs about a month ago. Both are girls called Polly & Daisy. I got them from my local pet shop and there 2years old. Polly has settled in very well and quickly while daisy has taken a it linger but finally eats out my hand and enjoys snuggles. They have both recently started to growl all day & night long at each other. I’ve noticed daisy is trying to mount Polly which then causes snapping and growling. Also Polly will pinch Daisy’s food from her mouth which again causes the growling. Wondering if this is just normal behaviour and I should leave alone or if it’s something I should be worried about ??