BY: VALERIE ANN DISMAYA
When we think of polar bears, the first thing that comes to mind is their striking white fur.
But did you know that their skin is actually black?
The polar bear, scientifically known as Ursus maritimus, is one of the most well-known creatures of the Arctic.
Their black skin is hidden under their fur, which is colorless and hollow on the inside.
The fur of a polar bear has two layers: a thick undercoat for insulation and a visible outer layer called guard hair, which provides additional protection against the Arctic’s freezing winds.
The hollow structure of their fur reflects light, making it appear white to our eyes. This unique adaptation not only keeps them warm but also helps them blend into their snowy environment, making it easier to hunt for food.
In addition to their fur, polar bears have a thick layer of fat that can be up to 10 centimeters thick. This layer helps retain body heat, even as they swim in the icy waters of the Arctic.
These apex predators are at the top of the food chain in Arctic regions, such as Canada, Russia, and Alaska.
However, despite their strength and resilience, polar bears face significant threats due to climate change.
Although they are not yet classified as endangered, they have been listed under the Endangered Species Act and the Marine Mammal Protection Act since 2008, as their population continues to decline.
The loss of sea ice, their primary habitat, has severely impacted their numbers and reduced their access to food.
To address this, organizations like the World Wildlife Fund advocate for reducing carbon footprints, using renewable energy, and supporting campaigns aimed at polar bear conservation.
By taking action, we can help ensure that these magnificent creatures continue to thrive for generations to come.
