A rare and fascinating amphibian found only in a small, isolated region of northeastern Spain, specifically within the Montseny mountain range. This species is notable for its restricted habitat and unique adaptations to its environment, making it a symbol of conservation efforts in the area, with its smooth, dark brown skin, often speckled with lighter tones, and its slender body, the Montseny brook newt is perfectly camouflaged against the mossy rocks and clear streams it inhabits.

This small amphibian is highly specialized for life in cold, fast-flowing mountain streams. Its body is streamlined, allowing it to navigate strong currents with ease. Unlike many other amphibians, the Montseny brook newt spends most of its time in water, rarely venturing onto land. It thrives in pristine, oxygen-rich streams shaded by dense forests of beech and oak, which help maintain the cool temperatures and clean water it needs to survive.

The diet of the Montseny brook newt primarily consists of small aquatic invertebrates such as insects, larvae, and crustaceans. It is an active hunter, using its sharp eyesight and quick reflexes to catch prey. Its reliance on healthy stream ecosystems makes it a valuable indicator species, meaning its presence reflects the overall health of its environment.

Reproduction for this newt is closely tied to its aquatic lifestyle. During the breeding season, males develop slightly swollen hind legs and engage in courtship displays to attract females. Once mating occurs, females lay eggs individually, attaching them to submerged vegetation or rocks. The eggs hatch into larvae that remain in the water, undergoing a transformation process over several months before reaching adulthood.

Distribution

Country

Population est.

Status

Year

Comments

Spain

1,000–1,500

Official estimate

CR

2021