This ability to store sperm seems to be widespread in snakes and turtles, although the phenomenon has not been rigorously tested. Found a biggest snake in the world with 7m long. The testes are where the sperm originates; from there it is expelled into the epididymis, and then carried through the vas deferens that run to the cloaca. Female anacondas do not always consume their mates, and it is not clear how they choose whether to do so. These organs filter the blood and remove waste products, which are then concentrated and transported, via the ureters, to the cloaca.
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For some reason, the data did not load properly. The thumb on the underside of the tail squeezes the tail against a finger and, using the thumb in a rocking motion, pushes gentle pressure toward the vent. In general, however, differences in tail length are not a satisfactory means of determining sex. Are snakes right-handed? Because no sperm are used, male chromosomes are not available, and recombination does not occur.
Snake Anatomy | Animal Planet
But there may well be more of an element of female choice. However, the garter snakes only do this in certain places. Popping a male sand boa baby Snakes can be sexed with certainty using the "popping" method only during the first few weeks after hatching. A set of these tubes in graduated sizes, is an important item of equipment for any snake collection. Having an experienced person demonstrate is the preferred method of instruction. In fact female snakes are physically imposing, so it is not surprising that they can overpower — and even swallow — their mates.
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