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[2] [3] The skin is granular, but males are smooth-skinned during breeding season. They measure 6 to 9 cm (2.4 to 3.5 in) in snout-to-vent length, and 11 to 18 cm (4.3 to 7.1 in) overall. [ 3 ] They are similar to the California newt ( Taricha torosa ) but differ in having smaller eyes, yellow irises, V-shaped tooth patterns, and uniformly dark ...
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 ...
The eastern newt (Notophthalmus viridescens) is a common newt of eastern North America.It frequents small lakes, ponds, and streams or nearby wet forests. The eastern newt produces tetrodotoxin, which makes the species unpalatable to predatory fish and crayfish. [3]
The southern banded newt (Ommatotriton vittatus) is a species of salamander in the family Salamandridae found in Armenia (Lori Province of northern Armenia), Iraq, Israel, Jordan, Lebanon, Syria, and Turkey. This species has two subspecies - O. v. vittatus (found in Turkey, Syria, and Israel) and O. v. ciliensis (found in Turkey). [2]
The main breeding season for newts (in the Northern Hemisphere) is in June and July. A single newt female can produce hundreds of eggs. For instance, the warty newt can produce 200–300 eggs (Bradford 2017).
The Sierra newt migrates between aquatic and terrestrial habitats seasonally. Outside the breeding season, the newts are land-dwelling, preferring rock crevices and logs, in habitats such as forests, woodlands, and shrub-lands. However, during breeding season, the newts will migrate to aquatic regions to mate and lay eggs. [5]
During the breeding season, some residents and local governments close roads to protect migrating newts and salamanders from becoming roadkill. A park in Contra Costa County in California posts a drive through the park with this notice: During wet weather conditions, Southpark Drive will be closed to protect migrating newts.
The alpine newt (Ichthyosaura alpestris) is a species of newt native to continental Europe and introduced to Great Britain and New Zealand. Adults measure 7–12 cm (2.8–4.7 in) and are usually dark grey to blue on the back and sides, with an orange belly and throat.