description Cope's Giant Salamander Overview
Cope's giant salamander, Dicamptodon copei, is a stream-associated amphibian native to the Pacific Northwest of North America. It is the smallest member of the genus Dicamptodon and is notable because most individuals retain aquatic larval characteristics into reproductive adulthood, a condition called neoteny, while transformation into a terrestrial form is rare. It inhabits cool, clear streams and adjacent wet forests, where it feeds on aquatic invertebrates and small vertebrates.
help Cope's Giant Salamander FAQ
Why does Cope's Giant Salamander stay in its larval form?
The species is paedomorphic, meaning most adults retain aquatic larval features such as external gills and reach sexual maturity without ever metamorphosing. Metamorphosed individuals are rare in the wild, making it a classic example of this life-history strategy.
Where can Cope's Giant Salamander be found?
It lives in cool streams of the Pacific Northwest, primarily in Washington and Oregon, including the Cascade and Coast ranges. It is fully stream-associated, hiding under rocks and woody debris in flowing water.
Who was Cope's Giant Salamander named after?
It honors the American paleontologist Edward Drinker Cope, famous for his 'Bone Wars' fossil-collecting rivalry with Othniel Charles Marsh. Cope described an enormous number of reptile and amphibian species in the 19th century.
How big is Cope's Giant Salamander compared to its relatives?
It is the smallest member of the genus Dicamptodon, despite the 'giant' name. Its relatives, such as the coastal giant salamander, can exceed a foot (about 30 cm) in total length.
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