Most temperate species of frog reproduce in the period between late autumn to early spring. In the UK most Common Frog populations produce frogspawn in February although there is wide variation in timing. Water temperatures at this time of year are relatively low and typically between four and 10 degrees celsius. Reproducing in these conditions helps the developing tadpoles because dissolved oxygen concentrations in the water are highest at cold temperatures. More importantly, reproducing early in the season ensures that appropriate food is available to the developing frogs at the right time.













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001-013.jpg courtesy Us Fish and Wildlife Service
014-016.jpg courtesy: National Undersea Research Program
017-018.jpg courtesy: pdphoto.org





























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