Polar Bears Survival

1298 Words 6 Pages
Register to read the introduction… Breeding occurs in the spring before they know whether there will be enough resources for survival. The embryo may take a year to develop depending on whether the mother has a stable food supply. Mothers protect their cubs for two years, so they typically breed every three years. Research has found that cubs have a forty-four percent survival rate compared to sixty-five percent in 1980-1990 (Polar Bears International). This is largely due to the decrease in sea ice. This loss has made it challenging for polar bears to find food. Polar bears spend much of their time on the sea ice which is necessary to hunt for seals and marine animals. Hunting land animals such a caribou is not something they have adapted to, they are used to hunting seals. Many polar bears are feeling the effects of shortage of food and are facing starvation. The US Fish and Wildlife Service have however, found that polar bears are slowly beginning to adapt to living on land and consuming whale carcasses that wash ashore (Global Warming Reduces). This is because they are being forced to live on land. From 1979 – 1991 eighty-seven percent of polar bears were found on ice, but that number dropped to thirty-three percent from 1992-2004 according to Minerals Management Service researchers …show more content…
Many researchers believe if they were able to survive the warming’s that occurred 110,000 years ago and more recently 6,000 years ago, then why can’t they survive this one? The predictions of the decrease in polar bear populations by 2050 were made only to “support the US Fish and Wildlife Service Polar Bear Listing Decision (Polar Opposites).” Researchers have found that in many of the reports claiming that the polar bear’s future is grim because of climate change is not supported by scientific evidence thus, having no value. Without scientific evidence, the opinions of polar bears experts have no value concerning the future of the polar bears. Polar bears are majestic creatures and the cubs are adorable, but animals should not be placed on lists based on emotional responses (Polar

Related Documents