Newt
During the subsequent few months, the larvae undergo metamorphosis, during which they develop legs, and the gills are absorbed and replaced by air-breathing lungs. Some species, such as the North American newts, also become more brightly coloured during this phase. Once fully metamorphosised, they leave the water and live a terrestrial life, when they are known as "efts". Only when the eft reaches adulthood will the North American species return to live in water, rarely venturing back onto the land. Conversely, most European species live their adult lives on land and only visit water to breed.
Alpine newt
Alpine newts typically inhabit forests with good access to water in hilly to mountainous regions. They are mostly absent in forest-poor areas. They populate well in thick deciduous forests, as well as parkland and natural gardens. Outside the spawning season, Alpine newts live terrestrially. During the day it then stays in all kinds of undergrowth. After the adults come out of winter dormancy, they migrate to their spawning pools (forest pools, artificial pools) and live the mating season in cool water.