Thamnosophis infrasignatus
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~60% in a week ~90%
Thamnosophis infrasignatus, commonly known as the forest water snake, is a species of snake in the family Pseudoxyrhophiidae. It is endemic to Madagascar. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ranomafana National Park | 🇲🇬 Madagascar |
More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Forest Water Snake sighting in Ranomafana National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 21st most-seen of the 29 reptiles we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 60% of wildlife watchers report a Forest Water Snake in Ranomafana National Park on a given day, against under 5% in June to September, the lowest months. That is one of Ranomafana National Park's driest months, with about 120 mm of rain against 450 mm in January.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Forest Water Snake sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Ranomafana National Park, in our data
Ranomafana National Park is the only park on Wallace's Line with enough records to rate Forest Water Snake sightings: about 30% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Forest Water Snake is recorded against all the reptiles logged in Ranomafana National Park (10 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.
