Emma Morano is an Italian supercentenarian who is, at the age of 116 years, 169 days, the world's oldest living person, and the last verified living person to have been born in the 1800s. Born on Nov. 29, 1899, Morano is believed to be the last person living born in the 19th century.
The coral reefs existing today began growing as early as 50 million years ago. Most established coral reefs are between 5,000 and 10,000 years old. Although size can be a good indicator of the age of a coral reef, it is not a certain indicator.he coral reefs existing today began growing as early as 50 million years ago. Most established coral reefs are between 5,000 and 10,000 years old. Although size can be a good indicator of the age of a coral reef, it is not a certain indicator.
Low temperature limits for reef and coral growth It has been known for decades that reefs do not form where the ocean temperature regularly goes below 18Â°C for intervals of weeks to months. Reef geologists concerned with the history of reefs refer to this well-established fact, yet in so-doing they often assume that lower temperatures kill corals. This is seldom the case. Reef-building allows entire ecosystems to exist, a process that can only happen if the growth of macro-algae is held in check.