The field guide to brain rot
Brain rot.
Classified.
The internet’s strangest creatures, classified like wildlife, with the real science behind them and a free 3D print to make your own.
Featured specimens
Tap one for field data and downloads.
Tralalero Tralala
Squalus nikeus
CRCritically overplayed
Bombardiro Crocodilo
Crocodylus bombardierus
ENEndangered
Bombombini Gusini
Anser supersonicus
VUVulnerable
Ballerina Cappuccina
Coffea saltatrix
NTNear threatened
Cappuccino Assassino
Coffea sicarius
VUVulnerable
Brr Brr Patapim
Nasalis arboreus
NTNear threatened
Lirilì Larilà
Elephas cactaceus
LCLeast concern
Chimpanzini Bananini
Pan musaceus
LCLeast concern
La Vaca Saturno Saturnita
Bos saturnius
DDData deficient
Tung Tung Tung Sahur
Lignum percussor
CRCritically overplayed
Boneca Ambalabu
Rana pneumatica
VUVulnerable
Skibidi Toilet
Latrina cantans
EWExtinct in the wild. Thriving in captivity.
Amogus
Suspectus vulgaris
LCLeast concern
Big Floppa
Caracal floppa
LCLeast concern
Maxwell the Cat
Felis rotans
LCLeast concern
Moai
Lapis indifferens
LCLeast concern. Has outlived every trend.
From the Journal
3D printing, memes, and the science behind both.
People · September 18, 2026
Who Invented 3D Printing? The Story Behind Every .stl File
Chuck Hull printed a cup in 1983 and co-founded 3D Systems. Your .stl files still carry his word. Your filament printer comes from the rival.
Print Lab · September 18, 2026
How to 3D Print Italian Brainrot Figures
Where to find free files, which kind of model to pick, and the three settings that decide whether your shark stands up.
Trends · September 18, 2026
How Italian Brainrot Took Over the 3D Model Sites
We counted the shark-in-sneakers models on four model sites. Then we read the lawsuit that could decide who owns them.
Memes, defined.
Three of them were Words of the Year.
Learn it. Print it. Send it.
Brain rot, with the science left in.
Learn it
The creatures are invented, but they’re built from real things. Specimen pages explain the real science inside the joke, and every word in the lexicon comes with where it came from. Every fact links to its source.
Print it
Every specimen links to a Yeggi search set to free models only. Yeggi searches Thingiverse, Printables, Cults, and more, so one tap shows every free version anyone has uploaded.
Send it
GIFs come from Giphy, stickers from Tenor, sounds from MyInstants, and the backstory from Know Your Meme. Each link opens a live search, so you see the newest uploads first.