The precedent on an issue is the collective body of judicially announced principles that a court should consider when interpreting the law. When a precedent establishes an important legal principle, or represents new or changed law on a particular issue, that precedent is often known as a landmark decision.he other type of precedent is case law. In common law systems this type of precedent is granted more or less weight in the deliberations of a court according to a number of factors.
An elephant pregnancy lasts for 21 - 22 months, the longest in the animal kingdom. Thong Deeâs gestation was 646 days, Porntipâs gestation was 651 days and Pak Boonâs gestation period was 658 days. The average/median gestation period for recorded elephant pregnancies is 659 days.
Longest Known Pregnancy. At 22 months, the elephant's gestation period is longer than that of any other mammal. This allows the infant's brain to reach a relatively advanced stage by the time of birth. A study into the chemical and biological processes at work in elephant gestation followed pregnant elephants at 17 zoos, monitoring internal changes by ultrasound.