Amphibians
Paddle-Tail Newt
Pachytriton spp. · also called paddle-tailed newt
Deep beneath a rock in a cold, fast-flowing mountain stream, a paddle-tail newt rests through the daylight hours, its broad, flattened tail built for a life spent almost entirely underwater. Come nightfall, it will use that same paddle-shaped tail to work its way along the stream bed, hunting for small invertebrates in the current.
Overview
The paddle-tail newt, genus Pachytriton, is a largely aquatic amphibian native to cold mountain stream habitat across East Asia. Its distinctive paddle-shaped tail and near-total commitment to life underwater set it apart from most other newt species, which typically divide time between water and land.
A newt that never really leaves the water
While most newts move between aquatic breeding sites and a more terrestrial existence, the paddle-tail newt has committed almost entirely to life in flowing water, a specialised lifestyle reflected directly in both its tail shape and its reduced reliance on lung-based breathing.
Status
Near Threatened — facing conservation concern in parts of its range from water pollution, stream habitat degradation, and pet-trade collection.
Paddle-Tail Newt: common questions
Why does the paddle-tail newt have such an unusual tail shape?
A paddle-tail newt has a notably flattened, broad, paddle-shaped tail well suited to swimming through the fast-flowing mountain stream water it inhabits, a specialised body shape that provides more effective propulsion than the more rounded tail typical of newt species that spend significant time on land.
Does the paddle-tail newt ever leave the water?
Rarely; unlike many newt species that split their time between water and land, a paddle-tail newt spends nearly its entire life fully submerged in water, an almost entirely aquatic lifestyle reflected in its comparatively reduced lung development, which relies more heavily on skin-based gas exchange suited to constant submersion.
What kind of water does the paddle-tail newt need?
A paddle-tail newt is typically found in cold, fast-flowing mountain streams, favouring clear, well-oxygenated water with rocky substrate that provides both shelter and foraging opportunities, a specific habitat requirement that makes the species sensitive to pollution or changes in water quality.
Where does the paddle-tail newt live?
Paddle-tail newt species are native to mountain stream habitat across parts of East Asia, including China and Vietnam, generally found at moderate to higher elevations where cold, clean, fast-flowing water conditions suited to the species' fully aquatic lifestyle are available.