Rhaebo guttatus
Silhouette: Michael Scroggie, from original photograph by Gary M. Stolz, USFWS (original photograph in public domain). · PhyloPic
In 3 days ~30% in a week ~50%
The smooth-sided toad (Rhaebo guttatus), also known commonly as the spotted toad, is a species of amphibian in the family Bufonidae. It is native to the Amazon basin of South America. The first description of the species was published in 1799 by Johann Gottlob Schneider, who placed it in the genus Bufo. Edward Drinker Cope moved the species to the genus Rhaebo in 1865.
The species taxonomic status is unclear, as it is likely that Rhaebo guttatus as currently defined actually encompasses several distinct species of toad. Rhaebo glaberrimus was for a time considered a subspecies of Rhaebo guttatus. Some specimens from southern Peru, Bolivia, and Brazil that were considered to belong to the species may actually represent Rhaebo ecuadorensis, the first description of which was published in 2012.
Males growth to about 15 cm (5.9 in) snout–vent length. Females are larger, at up to 17.4 cm (6.9 in), possibly even 25 cm (10 in), in snout–vent length. The dorsal color is cream colored or very light brown to reddish brown. The belly is a darker shade. The species has a characteristically prominent preocular ridge that is present even in juveniles.
The smooth sided... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brownsberg Nature Park | 🇸🇷 Suriname | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Manu National Park | 🇵🇪 Peru | |
| 4 | Tambopata National Reserve | 🇵🇪 Peru |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Bronx Zoo | 🇺🇸 United States | |
| 2 | Omaha’s Henry Doorly Zoo and Aquarium | 🇺🇸 United States | |
| 3 | Detroit Zoo | 🇺🇸 United States | |
| 4 | Terra Natura Benidorm | 🇪🇸 Spain | |
| 5 | Zoo Opole | 🇵🇱 Poland | |
| 6 | Philadelphia Zoo | 🇺🇸 United States | |
| 7 | Zoo Atlanta | 🇺🇸 United States | |
| 8 | Little Rock Zoo | 🇺🇸 United States | |
| 9 | Henry Vilas Zoo | 🇺🇸 United States | |
| 10 | Alligator Adventure | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Smooth-sided Toad sighting in Tambopata National Reserve on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 40th most-seen of the 44 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July, September and December
In those months about 20% of wildlife watchers report a Smooth-sided Toad in Tambopata National Reserve on a given day, against under 5% in January–June and October–November, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Smooth-sided Toad sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
4th of 4
Of the 4 parks where we can rate Smooth-sided Toad sightings, Tambopata National Reserve ranks 4th at about 10%. The best odds are in Brownsberg Nature Park (Suriname, about 70%), Yasuní National Park (Ecuador, about 40%) and Manu National Park (Peru, about 20%).
Same family: Bufonidae
The closest relatives of the Smooth-sided Toad that you can see in Tambopata National Reserve (family Bufonidae, True Toads) are Eastern Cane Toad (about 50%) and South American Common Toad (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Smooth-sided Toad is recorded against all the amphibians logged in Tambopata National Reserve (6 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.
