Mammals
Web-footed Tenrec
Limnogale mergulus · also called aquatic tenrec
Steering with a flattened, rudder-like tail and paddling with webbed hind feet, a web-footed tenrec hunts small fish and invertebrates through a fast-flowing Madagascan mountain stream, a semi-aquatic lifestyle unique among its spiny, land-dwelling relatives.
Overview
The web-footed tenrec, Limnogale mergulus, is an Endangered mammal native to fast-flowing mountain stream habitat across parts of Madagascar. Its webbed hind feet, rudder-like tail, and dense waterproof fur in place of spines make it one of the most physically distinctive tenrec species, having traded the family’s usual defensive strategy entirely for a life spent swimming.
A tenrec that went in a different direction
While most tenrec relatives rely on spines and land-based defences, the web-footed tenrec has instead given up that armour entirely in favour of swimming specialisations, a dramatic departure within a family otherwise known for its spiny, hedgehog-like body plans.
Status
Endangered, with a population declining due to stream pollution and habitat degradation across its limited range in Madagascar.
Web-footed Tenrec: common questions
Why is the web-footed tenrec different from other tenrecs?
It is the only tenrec species adapted to a semi-aquatic lifestyle, with webbed hind feet, a flattened rudder-like tail, and dense waterproof fur in place of the spiny coat typical of many of its relatives.
How does the web-footed tenrec swim?
It uses webbed hind feet for propulsion and a flattened tail to steer, allowing it to move efficiently through the fast-flowing mountain streams it inhabits.
Why is the web-footed tenrec considered Endangered?
Its population is declining due to stream pollution and habitat degradation across its limited range in Madagascar, where it depends specifically on clean, fast-flowing water.
Where is the web-footed tenrec found?
It is native exclusively to fast-flowing mountain stream habitat across parts of Madagascar.