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A different call is emitted by a male frog or unreceptive female when mounted by another male. This is a distinct chirruping sound and is accompanied by a vibration of the body. [95] Tree frogs and some non-aquatic species have a rain call that they make on the basis of humidity cues prior to a shower. [95]
The "tail" is only possessed by the male and is an extension of the cloaca and used to inseminate the female. This frog lives in fast-flowing streams and internal fertilisation prevents the sperm from being washed away before fertilisation occurs. [90] The sperm may be retained in storage tubes attached to the oviduct until the following spring ...
P. pipa is a strictly aquatic frog and the largest member of its genus. The species has an exceptionally depressed body, almost entirely flat and with a broad, flat, triangular head. It is without a tongue. [3] The body is similar in appearance to a mottled brown leaf. The feet are broadly webbed with the front toes having small, star-like ...
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 ...
Lymph vessels carry the lymph and, in the frog, open into the four lymph hearts. These lymph hearts are located on the dorsal side of frog's body. The front pair is situated below the shoulder blades. The posterior pair is on either side of a long, rod-like bone called a urostyle, formed by the fusion of the last few vertebrae.
The belly of the frog is a cream color, and the tips of the frog's hands are a bright yellow. It has a large, wide head with an oval body and a rounded snout. It has short limbs, and has large eyes that face forward. The Highland frog's eyes have diamond-shaped pupils. The female frogs are slightly larger than the male frogs.
The average mass is 22.7 g (0.80 oz); the female is usually slightly larger than the male. [2] Captive common frog tadpoles eating a crushed garden snail Male during breeding season showing the nuptial pad, white throat and a blue grey hue over the normal black and brown skin Common frog mass spawning event in the wild
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.