Do you think Pinkie Pie may have a different parent, her hair doesn't make sense since her parents have green and grey hair? As in she's actually a half sister? - Quora

Pinkie Pie Loses her Pink - MLP: Friendship Is Magic [Season 8]

Do you think Pinkie Pie may have a different parent, her hair doesn't make sense since her parents have green and grey hair? As in she's actually a half sister? - Quora

If you magically turned into one My Little Pony character, which would it be, and why? - Quora

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What theory do you have about Pinkie pie not looking like her parents? : r/mylittlepony

Why is Pinkie pie different from her family

In My Little Pony, what are the universal icons called that each pony has? - Quora

Truthfully, why do you dye your hair an unnatural color like purple or green or orange? Is it that you want to be noticed or do you just want to be different?

What are the different types of ponies in My Little Pony: Friendship Is Magic? How do they differ from each other? - Quora