Animals

Polar Bear



he polar bear (Ursus maritimus) is a symbol of Arctic endurance, evolving from brown bear ancestors around 500,000 years ago. This evolutionary split allowed polar bears to adapt to the extreme conditions of the Arctic, developing traits suited for hunting seals on sea ice.

Their white fur provides both camouflage and insulation, while a thick layer of fat protects them from freezing temperatures. Polar bears' large, webbed paws enable them to swim vast distances, a critical adaptation as their icy habitats shrink due to climate change.

As apex predators, polar bears play a crucial role in Arctic ecosystems. However, their survival is increasingly threatened by warming temperatures and melting ice, underscoring the importance of conservation efforts to preserve this unique evolutionary marvel.




WILDLIFE

The Cambrian Explosion!

About 540 million years ago, life experienced a dramatic increase in diversity during the Cambrian Explosion. This period saw the emergence of complex body structures, such as exoskeletons and segmented bodies, which gave rise to many of the animal groups that still exist today.

The evolution of vertebrates began in the oceans with fish-like creatures that developed spinal columns. Over time, some vertebrates adapted to life on land, giving rise to amphibians and later to reptiles, birds, and mammals.