Essay On Polar Bears

What is the first image that comes to mind when you think about polar bears? Most people think of polar bear cubs sliding down snow hills guzzling bottles of Coke. However, in my mind I see large majestic animals struggling to survive in the wild as the home around them is destroyed by climate change. Polar bears (genus: ursus, species ursus maritimus), are one of the few large mammals that are able to survive frigid temperatures that reach as low as minus sixty-nine degrees Celsius due to their multiple layers of fat and fur. They have roamed the icy earth for over one hundred thousand years with no predators other than dying of old age. Polars bears have no natural predators, only humans. The paradigm has changed; climate change has caught up with the ecosystem that polar bears depend on to stay alive. Polar bears belong to the genus: Ursus and species: Ursus Maritimus and live primarily in the North Pole (Polar Bears, Polar Bear Pictures, Polar Bear
Their diet consists of primarily ringed and bearded seals. Polar bears use a technique called still hunting, consisting of them laying in the snow near a seal breathing hole for hours at a time. They wait for the seals to come up for breath and drags it out of the water with its paws and proceeds to kill it by crushing its head with its jaw. Another technique used is to stalk a seal from a distance of ninety meters and lays down. It then proceeds to creep towards it until it is close enough to attack it with its paw and finally crush it with its powerful jaws. Polar bears live a life of feasting on fatty prey like seals and fasting in order to survive in the cold environments. Although polar bears’ evolutionary adaptations allows them to use blubber from ice seals to stay warm, they are known to also eat vegetation, geese, bird eggs, and other smaller mammals when seals are scarce (Hunting and