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The northern crested newt, great crested newt or warty newt (Triturus cristatus) is a newt species native to Great Britain, northern and central continental Europe and parts of Western Siberia. It is a large newt, with females growing up to 16 cm (6.3 in) long. Its back and sides are dark brown, while the belly is yellow to orange with dark ...
In the absence of suitable plants, the eggs may also be deposited on leaf litter, stones, or even plastic bags. In the northern crested newt, a female takes around five minutes for the deposition of one egg. Crested newt females usually lay around 200 eggs per season, while the marbled newt (T. marmoratus) can lay up to 400.
Newts are semiaquatic, spending part of the year in the water for reproduction and the rest of the year on land. While most species prefer stagnant water bodies such as ponds, ditches, or flooded meadows for reproduction, some species such as the Danube crested newt can also occur in slow-flowing rivers.
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Measuring 13 to 15 centimetres (5.1 to 5.9 in) long in total, sometimes up to 18 centimetres (7.1 in) in females, [9]: 345 the Danube crested newt is the smallest crested newt species. It has a more slender, elongate body than the other species, well adapted to swimming, with a narrow head and relatively short limbs.
In the newt species of the Italian crested newt (Triturus carnifex), males that possessed large mid-dorsal body crests were more favorable to the females looking to mate. [8] Female choice is the final step in the males attempt to reproduce; if the female does not find the male's traits desirable, reproduction will not be successful.
Adult newts in the genus Triturus were found to breathe mainly via the skin but also through the lungs and the buccal cavity. Lung breathing is mainly used when there is a lack of oxygen in the water, or at high activity such as during courtship, breeding, or feeding.
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