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The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), the schistosome family of flatworms, and some reptiles, e.g. majority of snakes, lacertid lizards and monitors, including Komodo dragons.
Sea snake scales differ from that of terrestrial snakes because they are rugose and wrinkled. Male sea snakes scale rugosity is more developed than that of the female snakes. The male turtle headed sea snake, Emydocephalus annulatus, provides an interesting case study because of their unique scales. [35]
One can attempt to identify the sex of a snake when the species is not distinctly sexually dimorphic by counting scales. The cloaca is probed and measured against the subcaudal scales. [67] Counting scales determines whether a snake is a male or female, as the hemipenes of a male being probed is usually longer. [67] [clarification needed]
The sexual dimorphism in amphibians and reptiles may be reflected in any of the following: anatomy; relative length of tail; relative size of head; overall size as in many species of vipers and lizards; coloration as in many amphibians, snakes, and lizards, as well as in some turtles; an ornament as in many newts and lizards; the presence of ...
You can identify this snake by its pattern: light-ended crossbands that scope the entire body. Its colors vary, some common include gray, dark gray, light brown, brown with a gray head, brown or ...
Hemipenes can be examined on a living snake or lizard by gently squeezing on the tail and massaging towards the vent, which is the cloacal opening on the underside of the tail. This will cause the hemipenis to evert out of the body. However, this method can also make it difficult to identify the sex of a dead specimen if it is damaged or dry.
Habitat and range: Coral snakes can be found in sandy pinewoods of South and Southeast Mississippi. Reaction to human encounters: Coral snakes are secretive and encounters with humans are uncommon ...
A former female inmate is suing the state of Washington after allegedly enduring sexual assaults at the hands of a biologically male cellmate who claimed to identify as a woman.