Whose dewlap is this?

Read the throat fan.

The dewlap is the fastest way to tell anoles apart, and the hardest thing to photograph. Every answer tells you what to look for next time. Photos are from iNaturalist observers under open licenses, credited after each round.

No AI-generated questions or answers. Built from real sources and fixed rules.What this meansClose

Nothing in this game is written by AI while you play. The questions and answers come from a set we built ahead of time from real sources, and the game only picks and shuffles them.

AI did help us build it: writing code, organizing information and drafting some of the drawings.

How we build our tools

Anoles signal with a throat fan called a dewlap, and its color is often the quickest way to tell species apart. Ten photos, four choices each. How many can you name?

Photos load when you start. Want a head start? Meet the Anoles first.

Go deeper

Keep learning with a course.

Everything on this page is free to use. If you would like to go further, our courses are self-paced and grounded in science, with no deadlines, and the free one is a good place to start.

Instructor Micha Petty with Sulcata
Open for enrollment

Starting and Running a Reptile & Amphibian Rescue

Self-paced · $35.00

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Eastern Copperhead photo by Justin Sokol
Free

Coexisting With Wild Snakes

A free course on living alongside snakes: the myths, the biology, why identification rules fail, and what to actually do.

Self-paced · Free

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Browse all courses

Free, and staying that way

Help keep these tools running

This tool, the free snakes course, the Primer and everything on our Resources page will always be free. If it helped you and you would like to help keep it running (and help us build the next one), you can pitch in. Everything given goes to LEARN, the nonprofit rescue that runs The Herpetology Collective, so it also helps feed, house and care for the animals we take in.

Ways to support