About
PenisGuessr is a free daily guessing game about comparative anatomy. Every image shows a non-human animal: museum specimens, bones, scientific drawings and wildlife photographs. It is meant to be educational and is not intended for children.
This is an independent hobby project. It is not affiliated with, endorsed by or connected to GeoGuessr or any other game.
Contact & takedown requests
Questions, corrections, or a request to remove or re-credit an image: lucasofkaw@gmail.com.
If you hold the rights to an image and believe it is used here incorrectly, email that address with the image and what you would like changed. It will be fixed or removed promptly.
Privacy
- No accounts, no cookies, no analytics, no ads, no trackers.
- Your guesses, streak and statistics are stored only in your own browser (local storage). They are never sent anywhere. Clearing your browser's site data erases them.
- Like any website, the hosting provider's servers automatically log basic request data such as IP address and browser type in order to deliver the pages. This site does not use those logs to identify or profile anyone.
- Links to Wikipedia and Wikimedia Commons take you to those sites, which have their own privacy policies.
Image credits
All images come from Wikimedia Commons and are used under the licence shown. Each has been modified as noted. Where the licence is a share-alike licence (CC BY-SA, FAL), the modified version shown on this site is offered under that same licence. No endorsement by any author is implied.
Spoiler warning: the “source” links name the animal. Entries are listed in daily order.
Site text and code
The game's facts and descriptions are original to this site. Taxonomy follows common usage and may differ from any one authority.