The State Species Atlas
Every wild mammal. Every state.
Field guides to 471 wild mammals across all 50 states + DC, built from 4.2 million occurrence records.
Hover or tap a state. 50 states + DC live.
- 471 species mapped
- 51 state jurisdictions
- 3,953 state field-guide pages
- 4.2M occurrence records
Mammals are live now. Birds, reptiles, amphibians, and more are in progress.
Outforia has been featured in
Interactive tools
All tools →
Interactive tool Is It Good Outside?
Get a live outdoor comfort score for any location, built from temperature, wind, rain, UV and air quality.
Open the tool →
Data study Deadly Animal Encounters by State
All 50 states ranked by animal-related deaths from CDC records, in total and per 10 million residents, 1999 to 2024.
Open the tool →
Data study Data Centers vs. The Wild
An interactive map ranking the states where data center buildout overlaps most with wildlife, forests and drought pressure.
Open the tool →Wildlife in focus
View all →
Snakes in Alabama: 46 Types and How to Identify Them
Alabama's forests, rivers, and coastal plain hold copperheads, cottonmouths, rattlesnakes, kingsnakes, watersnakes, and secretive burrowers.
Snakes in California: 47 Types and How to Identify Them
California's snake list moves from desert rattlesnakes to coastal gartersnakes, mountain boas, kingsnakes, and burrowers.
Snakes in Louisiana: 49 Types and How to Identify Them
Louisiana's snake fauna is built around bayous, bottomland hardwoods, pine woods, prairies, and Gulf Coast wetlands.
How-To
View all →
Latest investigations
View all →-
ResearchInvader Alert! Which US States Have the Most Invasive Species?
Invasive species cost the global economy 1.288 trillion dollars over 50 years, with Florida and California having the most.
-
ResearchEndangered Hotspots: US States with the Most Endangered Species
Discover which 10 US states host the most endangered species and learn about critical habitats protecting over 1,200 imperiled species.
-
ResearchNature’s Dangers: How Deadly Are The World’s Most Common Natural Disasters?
Droughts have killed 11.7 million people historically; earthquakes and storms pose the deadliest threats today.
-
ResearchExtraterrestrial Encounters: The Biggest UFO Hotspots in the USA
Explore the top US UFO hotspots using National UFO Reporting Center data; mysterious lights dominate sightings across California and Washington.
