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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 eastern newt includes these four subspecies: [5] Red-spotted newt (Notophthalmus viridescens viridescens) Broken-striped newt (Notophthalmus viridescens dorsalis) Central newt (Notophthalmus viridescens louisianensis) - Central newts measure from 2.5 in (6.4 cm) to 4 in (10 cm) in length. They are brown or green, with fine black dots all ...
In William Shakespeare's play Macbeth, the witches use "eye of newt" as the first ingredient added to their cauldron. [12] Newts rarely appear in literature, but Roald Dahl included one crucial to the story as a practical joke on the malevolent Miss Trunchbull, in his novel Matilda. [13]
Notophthalmus meridionalis, the black-spotted newt or Texas newt, is a species of aquatic newt native to northeastern Mexico and southern Texas in the United States. [1] [2] This amphibian was put on the IUCN Red List of Endangered Species in 2008 with populations still decreasing. It was reclassified to Vulnerable in 2022. [1]
A single newt female can produce hundreds of eggs. For instance, the warty newt can produce 200–300 eggs (Bradford 2017). After courtship rituals of varying complexity, which take place in ponds or slow-moving streams, the male newt transfers a spermatophore, which is taken up by the female. Fertilized eggs are laid singly and are usually ...
The regeneration of the lens has been studied in several vertebrate species, especially the newt, which is able to repeatedly regenerate a perfect lens. [11] One study found that the lens of a newt that had been extracted and regenerated 18 times was indistinguishable from the lens of a control newt in terms of appearance and gene expression. [12]
Aristotle, Pliny, Nicander, Aelian. The standard lore of the salamander as a creature enduring fire and extinguishing it was known by the Ancient Greeks, as far back as the 4th century BCE, by his Aristotle (384–322 BCE) and his successor Theophrastus (c. 371–c. 287 BCE) [3] who gave such description of the σαλαμάνδρα (salamandra).