Teius teyou
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~80% in a week >90%
Teius teyou, the four-toed tegu, is one of the most common South American lizards. It belongs to the genus Teius and the family Teiidae. It is found from southern Brazil to Argentina. It lives on open land and often takes cover in rocky areas. It makes a tunnel for itself under soil and rocks to hide from enemies. It feeds on insects and spiders.
Longman Illustrated Animal Encyclopedia (1988) Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Impenetrable National Park | 🇦🇷 Argentina |
More parks will be added in future updates.
Likely
About 40% of wildlife watchers report a Four-toed Tegu sighting in El Impenetrable National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 8 reptiles we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
October
In that month about 70% of wildlife watchers report a Four-toed Tegu in El Impenetrable National Park on a given day, against under 5% in June–August and November, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Four-toed Tegu sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only El Impenetrable National Park, in our data
El Impenetrable National Park is the only park on Wallace's Line with enough records to rate Four-toed Tegu sightings: about 40% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Four-toed Tegu is recorded against all the reptiles logged in El Impenetrable National Park (9 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
