Moor frog


Females lay their eggs mostly at night. On top of these male (in Amplexus) releases at the same time the sperm. Fertilization occurs in the water. The main laying period in Poland is the end of April, when the water reaches a temperature of at least 10 degrees Celsius. Eggs (called. Squawk) are submitted at one time and in one place in the form of a spherical body. The number of eggs laid by one female is from 700 to 3000. The tadpoles hatch already educated tail fin, which they use to move around in the water. They breathe through the external fins that at the very early development of tadpoles are transformed into internal gills. They feed on organic particles, straining off with water or scraping them from plants and objects in the water. In the course of development they are growing in size and grow limbs. For some time before metamorphosis stop growing. Juveniles after transformation have a length of approx. 10-15 mm and overlook the land, usually in the rain. Sexually mature after 3 years. Body length of females 4-8 cm, weight 8-24 g, male body length 4-8 cm, weight 8-30 g. The body of delicate construction, eardrum less from the eye, eyes bulging. Skin thin and smooth. On the back of the body clearly visible dorsal folds. Coloration similar to the coloration common frog. The back of the body is colored in various shades of brown and covered with numerous dark patches. Belly white, or cream. The skin on the inner surfaces of the hind limbs is transparent. Characteristic species Moor Frog is the occurrence of round, almost black spots coastal area of ​​the body. The area of ​​its occurrence includes Northern Europe, Africa and North Asia (up to Siberia). In the north reaches to the Arctic Circle and even slightly exceeds them.