# Tailed Frogs (*Ascaphus*)

Tailed frogs are special frogs that have a little tail! They live in cool, clear streams and are great swimmers. These frogs are very unique because they can stay underwater for a long time.

- **Category:** [Amphibians](https://www.snappit.app/explore/categories/amphibian)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Habitat:** Mountain regions

![Tailed Frogs](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Ascaphus_truei_web.jpg&width=800)

Photo: Mokele, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Ascaphus_truei_web.jpg)

## Appearance

The Tailed Frogs are small, flattened amphibians with rough, bumpy skin, usually camouflaged in shades of brown, gray, or olive green. Males uniquely possess a short, tail-like cloacal extension for reproduction. They lack visible eardrums, setting them apart from most other frogs.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Chordata
- **Class:** Amphibia
- **Order:** Anura
- **Family:** Ascaphidae
- **Genus:** Ascaphus

## Interesting facts

- Tailed frogs are considered living fossils, very ancient creatures.
- Their "tail" is not for swimming; it's a special reproductive part!
- These frogs can live longer than many pet cats or dogs!
- They thrive only in extremely cold, pristine mountain streams.

## Special abilities

- **Silent Stream Dweller:** Tailed Frogs lack eardrums, an adaptation that helps them navigate and hunt in noisy, rushing water environments.
- **Enduring Youth:** Tailed Frogs' tadpoles can take up to four years to grow into frogs, allowing them to thrive in cold mountain streams.
- **Unique Mating:** Tailed Frogs' males have a unique "tail" (a copulatory organ) for internal fertilization in swift currents.

## Measurements & details

- **Length:** 2.5-5.5 cm
- **Weight:** 0.002-0.012 kg
- **Lifespan:** 10-20 years
- **Speed:** 0.1 km/h
- **Clutch Size:** 40-100
- **Metamorphosis:** 730-1460 days

## Diet & Feeding

Tadpoles graze on algae, while adult frogs mostly hunt small insects found in their streams.

- **Age differences:** Tadpoles primarily eat algae and diatoms, while adults switch to preying on aquatic insects and other small invertebrates.
- **Primary Foods:** Stonefly larvae, Caddisfly larvae, Mites, Springtails, Algae (tadpoles)
- **Foraging Method:** Foraging

## Ecological connections

- **Eaten by:** Common Garter Snake (*Thamnophis sirtalis*) — Snakes hunt them near stream edges.
- **Eaten by:** Cutthroat Trout (*Oncorhynchus clarkii*) — Trout prey on tadpoles and young frogs.
- **Hunts:** Caddisfly (*Hydropsyche betteni*) — Adult frogs eat their larvae.
- **Hunts:** Giant Stonefly (*Pteronarcys californica*) — Adult frogs eat their nymphs.

## Traits

- [Webbed Feet](https://www.snappit.app/explore/traits/webbed-feet): Characterized by having toes connected by a membrane, typically aiding in swimming.
- [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care.
- [Insectivorous](https://www.snappit.app/explore/traits/insectivorous): This trait identifies organisms whose diet primarily consists of insects and other small invertebrates.
- [Mountain](https://www.snappit.app/explore/traits/mountain): This habitat trait identifies species found in mountainous regions, characterized by high elevation, steep slopes, and varying climate zones.
- [Diurnal](https://www.snappit.app/explore/traits/diurnal): Diurnal animals are primarily active during daylight hours, typically resting or sleeping at night.
- [Freshwater](https://www.snappit.app/explore/traits/freshwater): Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species.
- [Endangered](https://www.snappit.app/explore/traits/endangered): Endangered status indicates a species is at a very high risk of extinction in the wild in the near future.

## Collections

- [Amphibians](https://www.snappit.app/explore/collections/amphibians)

## Safety

**Danger:** 1/5 · Very low

Always watch your step near water and don't touch frogs unless a grown-up says it's okay.

## Frequently Asked Questions

### How to identify Tailed Frogs?

Check the toe pads, leg length, eye markings, back pattern and body shape. Don't lean on color: some frogs change shade to match their surroundings. Frog Identifier: upload a photo and compare the visible details.

### How long is Tailed Frogs?

2.5-5.5 cm

### How much does Tailed Frogs weigh?

0.002-0.012 kg

### How long does Tailed Frogs live?

10-20 years

### How fast can Tailed Frogs move?

0.1 km/h

### What does Tailed Frogs eat?

Tadpoles graze on algae, while adult frogs mostly hunt small insects found in their streams.

### Where is Tailed Frogs usually found?

Mountain regions

### How does Tailed Frogs hunt?

Foraging

## Where to spot

- [Bogachiel State Park](https://www.snappit.app/guides/places/bogachiel-state-park) — Washington, US · State Park

## More Amphibians

- [Eastern Red-backed Salamander](https://www.snappit.app/explore/eastern-red-backed-salamander) (*Plethodon cinereus*)
- [California Slender Salamander](https://www.snappit.app/explore/california-slender-salamander) (*Batrachoseps attenuatus*)
- [Cuban Tree Frog](https://www.snappit.app/explore/cuban-tree-frog) (*Osteopilus septentrionalis*)
- [European Toad](https://www.snappit.app/explore/european-toad) (*Bufo bufo*)

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Source: [Tailed Frogs: Facts & Places to See — Snappit](https://www.snappit.app/explore/tailed-frogs)
