Welcome to What’s This Skull?

Have you ever found a skull and wanted to know what animal it came from? Well, wonder no longer: What’s This Skull? is the place to find out just that!

What’s This Skull? is a free, non-technical identification resource for mammal skulls in the United States. It balances simplicity and detail. The keys are easy to understand so you don’t have to be an expert to use them, but detailed enough to identify skulls down to the species level if desired. It’s the best of both worlds packed into one website!

For the Curious

What’s This Skull? was designed with non-experts in mind, so anyone can use the resources to identify skulls.

For Educators

What’s This Skull? can be used in classrooms to teach about skull traits and identifying local mammals.

For Researchers

What’s This Skull? is detailed enough to identify skulls down to the species, which is useful for scientific studies.

How to use this site:
Click Keys to identify skulls.
Click Browse to see the range of skulls in your area.

States currently represented on the website: Kansas. (More to come soon!)