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Who can help me distinguish the male and female of these two turtles

A. Brazilian turtle male and female differentiation pictures

By the picture above, we can see that there are three main points to distinguish between male and female Brazilian turtles:

1. Front claws: male long, female short.

2. Tail: male thick and long, female short.

3. Cloaca: male on the outside of the anal shield, female on the inside of the anal shield.

Two, how to distinguish between male and female Brazilian turtles

1. Juvenile Brazilian turtles distinguish between male and female

Generally speaking, the sex of juvenile turtles is difficult to be identified due to the immaturity of small-sized juvenile turtles (weighing less than 250 grams each). Some shopkeepers, when selling juvenile tortoises, say that they can judge the sex of the tortoises according to the pattern of the abdominal armor, which has no scientific basis at all. For turtles of the same age, females are always larger than males. Commonly, male Brazilian tortoises weigh up to 300 grams, female tortoises weigh about 500 grams sexually mature. Other turtles have different standards depending on the species.

Overall for common turtles, whether water turtles or tortoises, for their juvenile turtles, from the body shape can usually be identified by the following sex characteristics:

Female turtles: the dorsal carapace is shorter and wider, the ventral carapace is flat with no depression in the center, the tail is thin and shorter, the base of the tail is thin, the cloaca is nearer to the posterior margin of the ventral carapace, and the two anal shields of the ventral carapace form a shallower notch, with a larger angle of the notch.

Male turtles: the dorsal carapace is longer and narrower, the center of the ventral carapace is slightly sunken inward, the tail is thick and long, the base of the tail is thick, the cloaca is farther away from the posterior edge of the ventral carapace, and the notch formed by the two anal shields of the ventral carapace is deeper, with the notch angle being smaller.

2. Adult Brazilian turtles male and female discrimination

In addition, for mature individuals can be identified by the following methods:

The turtle's plastron is facing upwards, the left thumb, index finger two middle fingers respectively, the turtle's forelimbs, head compression retracted into the shell, the right hand will be the turtle's tail swinging straight, if the turtle's cloacal pore with a black penis outstretched, then it is the males; If the turtle's cloacal pore If the turtle's cloaca hole has a black penis sticking out, it is a male; if the turtle's cloaca hole discharges bubbles or thin mucus, it is a female.

For most species of adult turtles of the same year, males are thin and small; females are round, thick and large.

1) The location and shape of the excretory pore can distinguish the male and female: the male turtle's position is close to the end of the tail, and the pore shape is elongated. The female turtle's position is close to the ventral armor, and the shape of the pore is round.

2) The thickness and size of the tail, male turtles tail is thicker, female turtles are shorter and thinner.

3) Whether the armor is concave or not, male turtles have obvious concave, female turtles are flat.

4) Note that the male turtle turns black after maturity, while the female turtle is still the original brown body color.

5) The male's abdomen is sparsely patterned, while the female's is densely patterned.

6) The male weighs no more than 500 grams and has longer claws on all four limbs, while the female weighs up to 1,000 to 2,000 grams, but her nails are shorter than those of the male tortoise.

Feeding good if 3-5 years, about 500 grams of sexual maturity will lay eggs, 1-16 ranging from pregnancy will not see, I feed the turtle food 13 years before laying eggs