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The red eft (juvenile) stage is a bright orangish-red, with darker red spots outlined in black. An eastern newt can have as many as 21 of these spots. The pattern of these spots differs among the subspecies. An eastern newt's time to get from larva to eft is about three months.
A terrestrial subadult Eastern newt or red eft, Notophthalmus viridescens. Salamanders of the family Salamandridae with aquatic adult stages are called newts. Some newts, including the Eastern newt, have a juvenile terrestrial stage called the eft. The red eft has aposematic coloring to warn predators of its toxic skin.
The regular form eft, now only used for newly metamorphosed specimens, survived alongside newt, especially in composition, the larva being called "water-eft" and the mature form "land-eft" well into the 18th century, but the simplex "eft" as equivalent to "water-eft" has been in use since at least the 17th century. [4]
Yellow, orange, and red are the colors generally used, often with black for greater contrast. Sometimes, the animal postures if attacked, revealing a flash of warning hue on its underside. The red eft, the brightly colored terrestrial juvenile form of the eastern newt (Notophthalmus viridescens), is highly poisonous.
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The coloration of the red salamander has been hypothesized to mimic that of the red eft stage of the eastern newt (Notophythalmus viridescens) which emits a powerful neurotoxin in their skin. [27] This phenomenon is known as the Mullerian Mimicry Complex. [28]
A "red eft" (juvenile eastern newt) on North Fork Mountain. (Photo taken about 50 m from the Mountain's "Chimney Top" outcropping.) Wildlife on North Fork Mountain includes whitetail deer, wild turkey, black bear, Coyotes, bobcats, gray foxes, timber rattlesnakes, eastern newts, and a variety of other bird, mammal, reptile, and amphibian ...
Notophthalmus species are East American newts similar in shape to the European newts (cf. Triturus). As a distinct characteristic of their own, both sexes have three to four large pores that lie in a row on the temple. The skin is smooth and soft in the water form and the tail is strongly flattened laterally.