DATASET CREDITS

Real drawings.
Proper credit.

The 108 starter drawings were made by children—not generated by AI.

Source

They come from the Children’s Drawing Explorer published by the Visual Learning Lab at UC San Diego. The source dataset contains drawings made by children ages 2–10 during interactive drawing games at children’s museums.

The difficulty selector uses only documented source ages: Easy uses ages 8–10, Tricky uses ages 4–8 plus approved community art, and Tiny Chaos uses age 2. Each built-in pool contains four examples of nine animals; every challenge draws a fresh board from that larger pool. The source dataset does not include one-year-old drawings, and this project does not collect ages from community submissions.

Citation

Long, B., Fan, J. E., Huey, H., Chai, Z., & Frank, M. C. (2024). “Parallel developmental changes in children’s production and recognition of line drawings of visual concepts.” Nature Communications, 15, 1191.

License and changes

The source drawings and these adaptations are licensed under Creative Commons Attribution–NonCommercial–ShareAlike 4.0. For this site they were resized, placed on an off-white background, converted from PNG to JPEG, stripped of metadata, and renamed. The license applies to those 108 images, not to the rest of this website.

This independent parody is not endorsed by the Visual Learning Lab, UC San Diego, the dataset authors, Google, or reCAPTCHA.

Dataset source checked 10 October 2026.