My topic is going to be in a polar bear, and I will tell you everything you need to know about polar bears. Polar bears live in the northern arctic where they spend most of their time on ice floes. They are the largest land meat-eater in the world and the largest of the bear family. They are well suited to the cold Arctic ice and snow. Male polar bears may grow 10 feet tall and weigh over 1,400 pounds. Females reach seven feet and weigh 650 pounds. In the wild polar bears live up to age 25. Polar bears need an average of 2kg of fat per day to obtain enough energy to survive.
Around the age of four or five the female polar bear can start having babies. They usually only have two cubs and they have these babies in a cave they've dug in a large snow drift. They stay there over winter and come out in spring with the babies. The babies are much smaller than human babies when they're born. They are the size of a rat and weigh little more than a pound. They can grow to full man’s size in a year if they have lots of food.
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Each hair is a clear hollow tube. Polar bears look white because each hollow hair reflects the light. On sunny days, it traps the sun's infrared heat and keeps the bear warm at 98 degrees fahrenheit. Polar bear fur is oily and water repellent. The hairs don't mat when wet, allowing the polar bears to easily shake free of water and any ice that may form after swimming. Underneath the fur, a polar bear's skin is actually black, the black skin soaks up the sun's heat and helps them stay warm. Polar bears also have a 4 inch layer of fat underneath their skin. This prevents them from losing any of their heat. Their white fur helps them blend in with the snow and ice. A polar bear has a layer of fat under its skin which helps it stay warm. It also has a thick layer of