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It then travels on through the ureters, which are consequently known as urinogenital ducts. There is no penis, and sperm is ejected from the cloaca directly onto the eggs as the female lays them. The ovaries of the female frog are beside the kidneys and the eggs pass down a pair of oviducts and through the cloaca to the exterior. [79]
The adult male frog measures 16.8 to 17.6 mm (0.66 to 0.69 in) in snout-vent length and the adult female frog 17.7 to 20.3 mm (0.70 to 0.80 in). The skin of the frog's throat has dark brown or black spots, which scientists use to distinguish the frog from its congeners, which either have different spots or no spots at all.
Phyllomedusa boliviana is a species of frog in the subfamily Phyllomedusinae. It is found in Argentina, Bolivia, and Brazil (west of Mato Grosso and Rondônia States). [2] It has been observed between 200 and 1800 meters above sea level. [3] [1] People have seen this frog on the dry slopes of the Andes Mountains, in forests and in the edges of ...
The frog's skin is green on top, but the skin on the glass frog's stomach is just as translucent as its name suggests. You can even see its organs through the skin, especially its heart, liver ...
Scientists infer that the female frog lays her eggs on the ground and that, after the eggs hatch, the adult frogs carry them to water, like the frog's congeners. [3] During stage 34 of its development, the tadpole can be 13.0 mm in body length and 38.8 mm in total length. It has a round body, and the eyes are located dorsolaterally.
During the amplexus, the female's back is gradually swelled to a puffy condition. The male and female cloacae are brought close together, and many eggs are transferred anteriorly to the female's swollen dorsal epidermis. The eggs, each around 6.5 mm in diameter, then become implanted into the female's dorsal epidermis. During the first day the ...
The marsh frog (Pelophylax ridibundus) is a species of true frog and the largest frog native to Europe; females of this sexually dimorphic species may be up to 17 centimetres (6.7 in) long. The marsh frog feeds mainly on insects, but it also eats smaller amphibians, fish, and rodents.
[8] [9] This frog has smooth slippery skin which is multicolored on its back with blotches of olive gray or brown. The underside is creamy white with a yellow tinge. Male and female frogs can be easily distinguished through the following differences. Male frogs are small and slim, while females are larger and more rotund.