https://www.royalcanin.com/ca/en_ca/cats/kitten/picking-up-your-kitten-and-their-first-week-with-you/introducing-your-kitten-to-adults-children-and-pets

 

https://www.thesprucepets.com/help-older-cat-accept-kitten-554827

https://www.jacksongalaxy.com/blog/the-dos-and-donts-of-introducing-cats/

https://vcacanada.com/know-your-pet/bringing-home-your-new-kitten

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https://be.chewy.com/tips-for-bringing-home-a-senior-cat/