Aestivation Aestivation Aestivation or æstivation (from , summer, but also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. It takes place during times of heat and dryness, the hot dry season, which are often the summer months. Invertebrate and vertebrate animals are known to enter this state to avoid damage from high temperatures and the risk of desiccation. Both terrestrial and aquatic animals undergo aestivation. The fossil record suggests that aestivation may have evolved several hundred
Geography of the Philippines Forming the regions, with the exception of the National Capital, are the 81 provinces. Each province has a capital city or municipality. Of the 81 provinces of the Philippines, 15 are "landlocked", and 16 are "island provinces". The Philippines has a tropical climate dominated by a rainy season and a dry season, although certain locations have no dry season (meaning, all months have an average rainfall of above 60 mm) and certain higher-altitude areas can have a subtropical climate. The summer monsoon brings heavy rains to most of the archipelago from May to October, whereas the winter monsoon brings relatively