Sea otters live in the chilly Northern Pacific Ocean and spend almost all their lives in the water. They sleep, hunt, groom, mate, and give birth in the ocean, where they float on their backs on the water's surface. Adult sea otters spend more than a third of their day grooming their fur. This isn't for vanity; it's for survival. Unlike most sea mammals, sea otters do not have an inner layer of fat to protect them from the cold water. These creatures rely on their dense fur to protect them from the low temperatures. Sea otters have one of the thickest furs in all of the animal kingdom. An adult sea otter's coat can contain up to 1 billion individual hairs! These hairs form a protective, waterproof layer, which traps air and provides insulation. It is crucial that a sea otter's fur is kept clean to maintain this insulating layer between the water and their skin. Article B In the 1800s, sea otters were hunted for their fur. The fur trade between North America and Europe was booming, and sea otter fur was a popular option because of its thickness. By the mid-20th century, sea otters had been hunted to near extinction. Only 1,000–2,000 sea otters were believed to be living in the wild in 1929. Many people thought the species would soon become extinct. However, due to conservation efforts during the second half of the 20th century, sea otter populations recovered. The strengthening of the numbers of sea otters in the wild is often considered to be one of the greatest successes in marine conservation. How do the authors of the two articles address the same topic in these excerpts? a Article A highlights the quality of the sea otter's fur while Article B focuses on conservation efforts that have saved the sea otter in recent years. b Article A focuses on the characteristics of the sea otter's fur while Article B focuses on sea otter fur being one of the reasons the animal was hunted. c Article A includes historical facts about the significance of the sea otter's fur while Article B focuses on the dif