Coastal Tailed Frog
Ascaphus truei
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAmphibia (Amfibis)
- OrderAnura (Anurs)
- FamilyAscaphidae (Tailed Frogs)
- GenusAscaphus (Tailed Frogs)
- SpeciesAscaphus truei (Coastal Tailed Frog)
The tailed frogs are two species of frogs in the genus Ascaphus, the only taxon in the family Ascaphidae . The "tail" in the name is actually an extension of the male cloaca. The tail is one of two distinctive anatomical features adapting the species to life in fast-flowing streams. These are the only North American frog species that reproduce by internal fertilization. They are among the most primitive known families of frogs. Its scientific name means 'without a spade', from the privative prefix a- and the Ancient Greek skaphís (σκαφίς, 'spade, shovel'), referring to the metatarsal spade, which these frogs do not have. Wikipedia →
5–10% of wildlife watchers report a Coastal Tailed Frog sighting in Olympic National Park, based on 58 days of visitor records from GBIF citizen-science data.
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Redwood National Park | 🇺🇸 United States | |
| 2 | Olympic National Park | 🇺🇸 United States | |
| 3 | Great Bear Rainforest | 🇨🇦 Canada |
Quick answers
What are the chances of seeing a Coastal Tailed Frog in Olympic National Park?
About 8% of wildlife watchers report a Coastal Tailed Frog sighting in Olympic National Park, based on 58 days of visitor records from GBIF citizen-science data.
When is the best time to see Coastal Tailed Frog in Olympic National Park?
September has the highest sighting rate for Coastal Tailed Frog in Olympic National Park in our monthly data.