Forget everything you know about cute animals on the Internet.
Photographer Megan van der Elst, also known as lieveheersbeestje on DeviantArt, takes pictures of her 2-year-old, blonde guinea pig Professor BooBoo to the delight of online fans everywhere.
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"She's the perfect model, cooperative, versatile and very relaxed," van der Elst says on her website. The studious-looking model plays with props like nerdy glasses and books while frolicking in gardens and nuzzling knit blankets.
Van der Elst also features BooBoo's guinea pig friends, Titi and Teddy. More of their adorable photos can be found on DeviantArt or van der Elst's website.
Professor BooBoo may not have an actual PhD, but she can definitely teach everyone a thing or two about cuteness.
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BONUS: How NOT to Make Your Pet Internet Famous