The more involved the edit, the fewer pages an editor can complete per hour, and the more your project will cost. Depending on their level of experience and the level of edit required, an editor may charge anywhere from $15/hour to $100+/hour. A side note about the level of edit required: I have found the level of edit required can occasionally be a touchy subject with writers.
'Oldest living thing on earth' discovered. Ancient patches of a giant seagrass in the Mediterranean Sea are now considered the oldest living organism on Earth after scientists dated them as up to 200,000 years old. Scientists say a patch of ancient seagrass in the Mediterranean is up to 200,000 years old Photo: Getty Images. By Jonathan Pearlman, Sydney.
As of mid-2016, the oldest living man (by confirmed birth record) is 112 years old: Yisrael Kristal of Israel, born September 15 1903. The world's oldest living woman is Emma Morano of Italy (born November 29, 1899). At 116 years old, she is currently the oldest living person, officially.