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Vol. XVII · No. 1 Wednesday, 14 January 2026 Field conditions: 11°C, light rain · Portland, OR

EST. 2009 · PORTLAND, OR

A Field Journal of the World's Frogs & Toads.

For seventeen years, FrogWorld has paired peer-reviewed species data with forty thousand verified community sightings — so the first-time frog-spotter in Costa Rica and the chytrid-fungus researcher in Brussels read the same trustworthy page.

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Described species in the open catalog
7,548
Verified field sightings logged
42,617
Long-form species profiles published
1,847
A strawberry poison dart frog resting on a wet heliconia leaf in Costa Rica.
Plate I · Featured Species Oophaga pumilio Strawberry Poison Frog · Costa Rica & western Panama · photo: R. Calderón, 2025

Folio No. 142 · Curated Editorial

The Latest Issue

Three long-form profiles from the working desk — peer-reviewed taxonomy, field-call audio, and the back-of-the-notebook notes that never make it into a paper.

An Amazonian poison frog resting on a mossy streamside rock. Lead Profile · 22 min read

Order Anura · Family Dendrobatidae

The Diademed Mystery of Ameerega hahneli

Two decades after its original description, the Amazonian poison frog Ameerega hahneli is finally yielding the secret of its call repertoire — and surprising herpetologists with a previously undescribed chorus structure. Dr. Halverson takes us into the field at Reserva Mamirauá.

Read the profile

Family Bufonidae · Eurasia

The Quiet Return of the Natterjack

Once extirpated from half its historical range, the natterjack toad is reclaiming coastal dunes in Wales and the Netherlands — quietly, and against the grain of most amphibian headlines.

Read

Family Hylidae · North America

Listening for Hyla gratiosa

The barking treefrog's resonant call is one of the easiest to learn — and one of the hardest to find a population for. A short essay on triangulation, patience, and the etiquette of night recording.

Read

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Plate II · Editorial Pick

Species of the Week

The Budgett's Frog

Lepidobatrachus laevis · Budgett's Frog · Family Ceratophryidae

A Budgett's frog sitting half-submerged in shallow tannin water in Paraguay.
Adult Lepidobatrachus laevis, Estancia La Hermosa, Paraguay · photograph by the contributor network, December 2025.

Why this frog, why now: Budgett's frogs surface in the Chaco wetlands right after the December rains, and our regional contributors have just logged four confirmed choruses across western Paraguay — the highest count since 2019.

Few frogs wear their nickname with such dignity. The Budgett's frog is wide-mouthed, almost cartoonishly round, and capable of a defensive squeak that genuinely startles the uninitiated. It spends nine months of the year buried in the dry mud of the Gran Chaco, emerging only when seasonal rains flood the seasonal ponds that define its breeding cycle.

Larvae develop unusually fast — full metamorphosis in under three weeks — and emerge as miniature replicas of the adults. The call is a short, low-pitched snore, delivered from beneath the surface, often without any visible movement of the throat.

Range
Gran Chaco of Paraguay, Bolivia, northern Argentina
Habitat
Seasonal ponds and ephemeral wetlands in dry Chaco forest
Call
Low snore, 8–12 pulses, from beneath water
IUCN Status
Least Concern (population trend decreasing)
Contributor
Reviewed by volunteer regional herpetologist · 6 January 2026

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Live · Streaming from 138 countries

Today's Field Sightings

42,617 geo-tagged sightings logged by the community · 92% reviewed by a regional herpetologist within seven days · the latest six below, refreshed every few minutes.

Filtered to: Anura · verified · last 24 h

  1. 07:42 Boana rosenbergi Rosenberg's Gladiator Treefrog Osa Peninsula, Costa Rica · 8.43°N, −83.31°W logged by @calderon_r Verified · 2h
  2. 06:18 Pseudacris crucifer Spring Peeper Catoctin Mountain Park, Maryland, USA · 39.65°N, −77.47°W logged by @marisol_k In review · queued
  3. 05:51 Ceratophrys ornata Argentine Horned Frog Estancia San Nicolás, Buenos Aires Province, Argentina · 35.20°S, −59.10°W logged by @drvidal Verified · 5h
  4. 04:33 Mantella aurantiaca Golden Mantella Andasibe-Mithea, Madagascar · 18.94°S, 48.41°E logged by @rano_to Verified · 7h

Log your own sighting Free for members · 380 active regional contributors

From the swamp notebook

Field Reports

First-person dispatches from contributors in the field — the day after, the bad photos included, and the species list that goes back to the editorial desk.

Browse all 612 reports

Western Ghats · December 2025

Six Nights in Agumbe

By Anand Subramanian

The Western Ghats in late monsoon is not a forgiving place for boots. Anand recounts a six-night survey with the Frog Watchers of Karnataka — twenty-three species, three lifers, and the night a Malabar pit viper took the same perch as Raorchestes honnametti.

A small Rhacophorid tree frog on a wet leaf in the Western Ghats at night.

Patagonia · November 2025

Four Alsodes in Three Days

By Daniela R. Fuentes

Spotted frogs of the genus Alsodes are Patagonia's quiet specialists. Daniela drove 1,800 km of gravel to find four of the seven described species — and to confirm a population that hasn't been vouchered since 2007.

A Patagonia frog sitting among cushion plants beside a cold stream.

Borneo · October 2025

A Chorus of Polypedates

By Hadi Iskandar

The Danum Valley at dawn is its own instrument. A short audio-illustrated report on the dawn chorus of three Polypedates treefrogs, with annotated spectrograms and field-identification notes for visiting naturalists.

A file-eared tree frog on a low branch in the Borneo rainforest at dawn.

Read all 612 field reports Or submit your own — open to all registered members.

Editorial Standards

What you read here, and how it's checked.

Every long-form species profile on FrogWorld is reviewed by a member of the 14-person editorial staff before publication. Range data is cross-referenced nightly with the AmphibiaWeb and IUCN Red List APIs. Taxonomy follows Amphibian Species of the World. Community field sightings are reviewed by one of our 380 active regional contributors, with a target turnaround of seven days.

We do not give veterinary advice for captive amphibians, do not publish real-time population counts, and do not promote the capture, trade, or sale of wild frogs as pets. The Daily Tadpole is funded by memberships, grants, and a small number of ethical wildlife-tourism affiliate partnerships — never by advertising.

Founded
2009, Portland, Oregon
Editorial staff
14
Regional contributors
380
University library referrals
217
Peer-reviewed citations
38

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