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At the same time, the male tries to prevent other males from breeding with the female, using his body to block their access. [1] When copulation is achieved, a male implements a coercive mating strategy known as caudocephalic waving. The male garter snake strikes his own body against the female in quick repeated intervals.
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.
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]
In these species, one or more genes are present on their Y chromosome that determine maleness. In this process, an X chromosome and a Y chromosome act to determine the sex of offspring, often due to genes located on the Y chromosome that code for maleness. Offspring have two sex chromosomes: an offspring with two X chromosomes (XX) will develop ...
This creature has been masquerading as a snake and can even detach its own tail at will. This SC critter masquerades as a snake. Here’s how to tell the difference
How to tell a glass lizard from a snake. There are several physical characteristics that differentiate snakes and legless lizards: Glass lizards in North Carolina have ear openings on the sides of ...
Temperature-dependent sex determination (TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic/larval development determine the sex of the offspring. [1] It is observed in reptiles and teleost fish, with some reports of it occurring in species of shrimp.
Glass (legless) lizards look remarkably snake-like. We talked to wildlife experts to find out how to tell the difference.
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