Masturbation is the sexual stimulation of one's own genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm.
 The stimulation may involve hands, fingers, everyday objects, sex toys such as vibrators, or combinations of these.
 Mutual masturbation (mutual manual stimulation of the genitals between partners) can be a substitute for sexual penetration.
 Studies have found that masturbation is frequent in humans of both sexes and all ages, although there is variation.
 Various medical and psychological benefits have been attributed to a healthy attitude toward sexual activity in general and to masturbation in particular.
 No causal relationship is known between masturbation and any form of mental or physical disorder.
Kalopanax septemlobus, common names castor aralia and tree aralia, is a deciduous tree in the family Araliaceae, the sole species in the genus "Kalopanax".
 It is native to northeastern Asia, from Sakhalin and Japan west to southwestern China.
 It is called "cìqiū" (刺楸 ) in Chinese, "eumnamu" (음나무 ) in Korean, and "harigiri" (ハリギリ ; 針桐 ) in Japanese.
Sideritis syriaca, commonly known as ironwort, is a plant similar to chamomile, used in the Balkans (where it is known as "mountain tea") to make a sweet beverage.
 It grows on a high altitude in the mountains.
 It is commonly found on wet grounds, on the high pastures, above 1500 m.
Hypolaetin is a flavone.
 It is the aglycone of hypolaetin 8-glucuronide, a compound found in the liverwort "Marchantia berteroana".
 Hypolaetin 8-glucoside can be found in "Sideritis leucantha".
Due to Africa's position across equatorial and subtropical latitudes in both the northern and southern hemisphere, several different climate types can be found on the continent of Africa.
 Africa mainly lies within the intertropical zone between the Tropic of Cancer and the Tropic of Capricorn.
 Only the northernmost and the southernmost fringes of the continent have a Mediterranean climate.
 Because of this geographical situation, Africa is a hot continent as the solar radiation intensity is always high.
 Thus, warm and hot climates prevails all over Africa but the northern part is the most marked part by aridity and high temperatures.
 The climate of Africa is a range of climates such as the equatorial climate, the tropical wet and dry climate, the tropical monsoon climate, the semi-desert climate (semi-arid), the desert climate (hyper-arid and arid), the subtropical highland climate etc.
 Temperate climates remain rare through the continent except at very high elevations and along the fringes.
 In fact, the climate of Africa is more dependent to rainfall amount than to temperatures as they are consistently high.
 African deserts are the sunniest and the driest parts of the continent due to the prevailing presence of the subtropical ridge with subsiding, hot, dry air masses.
 Africa holds many heat-related records : the continent has the hottest extended region year-round, the areas with the hottest summer climate, the highest sunshine duration etc.
Sideritis (Gr: Σιδερίτης), also known as ironwort, mountain tea and shepherd's tea, is a genus of flowering plants well known for their use as herbal medicine, commonly as an herbal tea.
 They are abundant in Mediterranean regions, the Balkans, the Iberian Peninsula and Macaronesia, but can also be found in Central Europe and temperate Asia.
Quentovic was a Frankish emporium in the Early Middle Ages that was located on the European continent close to the English Channel.
 The town no longer exists, but until recently it was thought to have been situated near the mouth of the Canche River in what is today the French commune of Étaples.
 Archaeological discoveries led by David Hill in the 1980s found that the actual location of Quentovic was east of Étaples, in what is now the commune of La Calotterie.
 It was an important trading place for the Franks and its port linked the continent to England, specifically to the southeastern county of Kent.
 From what we know today, Quentovic was founded by a Neustrian king in the early 6th century.
 It was one of the two most prominent Frankish ports in the north (the other being Dorestad) until it was abandoned, probably in the 11th century.
 Merchants were drawn to this place because the number of trading posts at the time was limited.
 Quentovic was also the place where Anglo-Saxon monks would cross the English Channel on their pilgrimage to Rome.
 A lack of physical evidence, and the sudden disappearance of this emporium, make the town difficult to interpret.
 Some of the most important historical evidence on Quentovic comes from documents of taxation and especially through the town’s minting of coinage.
 Coins minted during both the Merovingian and the Carolingian dynasties have been found.
In contract law, a mistake is an erroneous belief, "at contracting", that certain facts are true.
 It can be argued as a defense, and if raised successfully can lead to the agreement in question being found void "ab initio" or voidable, or alternatively an equitable remedy may be provided by the courts.
 Common law has identified three different types of mistake in contract: the 'unilateral mistake', the 'mutual mistake' and the 'common mistake'.
 The distinction between the 'common mistake' and the 'mutual mistake' is important.
The South Polar dinosaurs proliferated during the Early Cretaceous (145–100 Ma) while the continent of Australia was still linked to Antarctica to form East Gondwana, a continent that had rifted from Africa and drifted southward.
 Much of this southern continent lay inside the Antarctic Circle, and the climate there was unlike any that exists today.
 This led to fauna and flora that were unique to the time.
 Much of what is known about the fauna of Polar Australia comes from fossil beds found in Dinosaur Cove and Flat Rocks on the Victorian coast of southeast Australia.
Jameson's red rock hare ("Pronolagus randensis") is a leporid found only on the continent of Africa, mostly in the southern portion of the continent.
 South Africa has a population of this red rock hare but it is only found in the northwestern part of the country.
 Botswana also has a population in the Tswapong Hills.
 Zimbabwe and Namibia are thought to have the largest populations of the red rock hare and it is said to be found throughout both countries.

Question: Sideritis and Kalopanax, can be found in which mutual continent?
Answer: Asia