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.
'Ming,' World's Oldest Animal, Is 100 Years Older Than Previously Thought. If the elderly deserve respect, scientists didn't show much in 2006 when they killed the world's oldest animal. To be fair, they didn't know it was the world's oldest at the time. But seven years later, researchers have determined that Ming the clam, an ocean quahog, or Arctica islandica, was actually 507 years old -- 100 years older than previously estimated. That makes the clam the longest-lived [multicellular] animal so far reported whose age at death can be accurately determined.. Ming's shell measures 3.42 inches long, 2.85 inches high (with a max height of 3.23 inches) and 1.89 inches wide.