Hi!
Guinea pigs are group animals; they live in a strictly hierarchical society and see everything in those terms. You have never taken leadership; she has taken over the vacuum.
Please welcome Igby into the group you are leading (ear stroking asserts that you are in charge), tell her that you love her (stroke around the eyes), assert your authority when she tweaks (gently but firmly forcing her chin up when you tell her off) but then tell her you love her again.
This sounds a bit mad, but this is exactly the way an experienced piggy is integrating a fractious newbie gently but firmly into the group. You will find that our 'piggy whispering' trick is surprisingly effective and that your relationship with Igby will become a lot more affectionate as a result.
" Biting" And What You Can Do
Understanding Prey Animal Instincts, Guinea Pig Whispering And Cuddling Tips
As stated above, guinea pigs are group animals that should not be kept alone. Igby is still a sub-teenager at an age when she is really desperate for round the clock company and guidance from her own kind. Company can also help boost overall health and a longer life.
Sadly so far Switzerland is still the only country with an animal protection law that forbids keeping any group species on their own, which includes specifically guinea pigs. The best and most loving gift you can make her in all her life is to not keep her alone!
Companionship
You may also find our new owners collection interesting and helpful. We are covering a wide range of topics we get the most questions and worries about from new owners. The above mentioned links are all part of it, but there is so much more truly helpful stuff!
Getting Started - New Owners' Most Helpful Guides