I’ve never had guinea pigs. My loss: they seem like delightful little characters.
The mother guinea pig nursing all those babies reminds me of a mouse I had whose mob of babies didn’t want to be weaned. The bunch of them would actually lift her up and carry her around when they were nursing. This was too much! She would climb up on the water bottle where they couldn’t get at her, and chatter angrily at them. But they all grew up to be good mice nevertheless.