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Many salamanders do not use vocalisations, [70] and in most species the sexes look alike, so they use olfactory and tactile cues to identify potential mates, and sexual selection occurs. Pheromones play an important part in the process and may be produced by the abdominal gland in males and by the cloacal glands and skin in both sexes.
The bite force of the adult Chinese giant salamander is much stronger than the bite force of the maturing Chinese giant salamander due to differences in cranial structure. [ 24 ] Chinese giant salamanders esophaguses are made up of four different layers, one of which being a strong muscular tissue used to help move food through to the stomach.
Two-toed amphiumas are the most prominent in the Amphiumidae family and the longest salamander species in the United States, [4] that can grow from 39 to 1,042 g (1.4 to 36.8 oz) in mass and from 34.8 to 116 cm (13.7 to 45.7 in) in length.
The Idaho giant salamander is the darkest and most intricately blotched of the giant salamanders. [3] They vary between brown, purple, tan, grey, and a copperish color. Tiger salamanders and Idaho giant salamanders have superficial resemblance pertaining to size and shape, but the costal grooves and foot tubercles are significantly different ...
Aquatic salamander teeth are used to hinder escape of the prey from the salamander; they do not have a crushing function. [17] This aids the salamander when feeding. When the salamander performs the "suck and gape" feeding style, the prey is pulled into the mouth, and the teeth function to hold the prey inside the mouth and prevent the prey ...
Scientists have determined that a giant salamander previously housed at the London Zoo not only represents a newly discovered species — it's also likely the largest amphibian known to man.
Japanese giant salamanders in Tottori Prefecture, Japan, showing notable color variation among individuals within the same population. Andrias japonicus skull. The Japanese giant salamander (Andrias japonicus) is a species of fully aquatic giant salamander endemic to Japan, occurring across the western portion of the main island of Honshu, with smaller populations present on Shikoku and in ...
The arboreal salamander (Aneides lugubris) is a species of climbing salamander. [3] An insectivore , it is native to California and Baja California , [ 4 ] where it is primarily associated with oak and sycamore woodlands, [ 5 ] and thick chaparral .