---
title: "Pacific Giant Salamander (Dicamptodon tenebrosus) | AnimalTracks.wiki"
description: "North America's largest terrestrial salamander, guarding Pacific Northwest streams with a startled bark, a noxious tail secretion, and gills it can keep for life."
image: "https://animaltracks.wiki/images/animals/pacific-giant-salamander-1.webp"
published: "2026-09-06"
updated: "2026-09-29"
---
# Pacific Giant Salamander (*Dicamptodon tenebrosus*)
> **Status**: Checked against 3 sources, listed under Sources below.
> **Tagline**: North America's largest terrestrial salamander, guarding Pacific Northwest streams with a startled bark, a noxious tail secretion, and gills it can keep for life.
> **Soundtrack Vibe**: 90s Grunge & Heavy Alt-Rock // Nirvana, "Heart-Shaped Box"
> **Soundtrack Links**: [Spotify](https://open.spotify.com/track/11LmqTE2naFULdEP94AUBa) | [YouTube](https://www.youtube.com/watch?v=n6P0SitRwy8)
> **Vibe Match**: Quiet, murky verses erupting into an abrasive, biting scream. A disturbed coastal giant salamander does the same, arching its body, sometimes thrashing its tail, and emitting a bark.
## Biological Superpowers & Stats
- **Taxonomy**: *Dicamptodon tenebrosus*
- **Danger Level**: Low
- **Conservation Status**: Least Concern ([IUCN Red List](https://doi.org/10.2305/iucn.uk.2022-1.rlts.t59081a196338656.en))
- **Superpower**: An audible warning bark and a noxious tail secretion, backed up by a head-butt and a vicious bite.
- **Habitat**: Gravel-and-boulder mountain streams and moist conifer forest from northern California to southwestern British Columbia
- **Diet**: Insects, amphipods, mollusks and crayfish as larvae; mice, shrews and even snakes as large adults on land
- **Tags**: amphibian, forest, freshwater, carnivore, predator
## Natural History & Behavior
## The Biggest Land Salamander in North America
Along the coast from northern California through Oregon and Washington into southwestern British Columbia lives the biggest land salamander in North America. The **Pacific Giant Salamander** (*Dicamptodon tenebrosus*), also called the coastal giant salamander, reaches up to 6.7 inches (17 cm) from snout to vent and 13.4 inches (34 cm) nose to tail, and adults weigh between 22 and 114 grams. By day its stream forms usually hide under rocks and woody debris in cold, low-silt mountain streams, and in rainy spells it can turn up beneath leaf litter in the moist conifer forest nearby. It lives from sea level up to about 1,830 meters and is mostly active at night.
## A Bark, Then a Bite
Grab one from under a rotting log, and it will not just squirm. Disturbed salamanders arch their backs, sometimes thrash their tails, and let out an audible growl or bark. They can also secrete a noxious substance from the tail to ward off predators, and adults will also head-butt and bite viciously. Weasels, river otters, water shrews and garter snakes are among its documented predators.
## Built to Ambush
Eggs take up to seven months to hatch into larvae about 3 centimeters long, which live off a large yolk sac for two to four months, then start hunting for themselves. Larvae spend 18 months to two years in the stream, working through insects, amphipods, mollusks and crayfish, with larger larvae sometimes adding fish and other salamanders to the menu before some of them transform. The species hunts by sitting and waiting, then lunging a short distance, and large adults on land can take mice, shrews and even snakes.
## Gills for Life
Not every coastal giant salamander bothers finishing the job. In British Columbia, nearly all of them keep their external gills for life instead of completing metamorphosis, yet they still become sexually mature. Even these gilled adults sometimes move out of the stream in rainy, wet weather. Whichever body plan it ends up with, maturity comes at around 4.5 inches (11 cm) from snout to vent and takes five or six years.
> **Eaten by Its Own Kind** The species is one of its own predators. Cannibalism among coastal giant salamanders is well documented in males, and it may be why a female stands guard over her eggs for six or seven months.
## Frequently Asked Questions
### Can the coastal giant salamander actually bark?
Yes. A disturbed one gives a bark, and it can also make a rattling or growling noise while it snaps its jaws and lashes its tail. *(Source: [Animal Diversity Web, University of Michigan]())*
### Is its bite dangerous to humans?
No harmful effects on people are known. A salamander facing a predator still has a full kit of defenses, from tail lashing and biting to skin secretions, plus a warning bark. *(Source: [Animal Diversity Web, University of Michigan]())*
### What does an adult coastal giant salamander eat?
Counted one by one, most of an adult's prey comes from the water, but by volume it eats more land animals. Big adults foraging the forest floor on rainy nights can take mice, shrews and even snakes. *(Source: [Animal Diversity Web, University of Michigan]())*
### Do all coastal giant salamanders grow legs and leave the water?
No. Gilled adults are common in coastal populations, and in British Columbia almost every one skips metamorphosis for good. Washington's wildlife agency notes that the larval stage can be permanent, depending on local conditions. *(Source: [Animal Diversity Web, University of Michigan]())*
## Sources
1. [Dicamptodon tenebrosus (Coastal Giant Salamander). Animal Diversity Web, University of Michigan.]()
2. [Pacific giant salamander (Dicamptodon tenebrosus). Washington Department of Fish and Wildlife.]()
3. [Dicamptodon tenebrosus. The IUCN Red List of Threatened Species 2022: e.T59081A196338656.]()
*Published September 6, 2026. Last updated September 29, 2026.*
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