Frogs and Toads
Coastal Tailed Frog
Ascaphus truei
Across the regions where it's common, the Coastal Tailed Frog peaks from July to October.
Shows up in 2 ecoregions and 3 states
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Frogs and Toads
Coastal Tailed Frog
Ascaphus truei
Description
The tailed frogs are two species of frogs in the genus Ascaphus, the only taxon in the family Ascaphidae . The "tail" is found only in males, and is actually part of the cloaca, used to insert sperm into the female during mating.Wikipedia ↗
Habitat
The habitat of the tailed frog is cold, fast-moving streams with cobblestone bottoms. Thermal tolerance range in adults is exceptionally low relative to other North American anurans, with eggs rarely found above 20 °C and adults and larvae regularly migrating along microhabitats to reach temperatures below 20 °C whenever possible.Wikipedia ↗
When it's active
Tailed frogs are unique among the anurans in exhibiting a combination of amplexus and copulation during courtship and mating. Courtship occurs at the onset of fall, between September and October, and is carried out in the water.Animal Diversity Web ↗

When and where it's active
Each row is its own calendar, counted from records in that area. Seasons shift by place.
Ecoregions
States
About the Coastal Tailed Frog
When is the Coastal Tailed Frog most active?
Across the regions where it's common, the Coastal Tailed Frog peaks from July to October.
Where does the Coastal Tailed Frog live?
It has enough records to show in 2 ecoregions and 3 states, including California, Oregon, and Washington.