The blue whales population has now dwindled due to the direct exploitation of these whales during the 20th century. In the past, the blue whales were subject to commercial whaling but it is no longer a threat now. It is probable that the two major threats facing these whales are…

Despite the fact that blue whales have a global distribution, they are sparsely populated around the world. Today, there are about 10,000 to 25,000 blue whales alive in the oceans, making them one of the most endangered whales. According to one estimate, the blue whales currently number around 8,000 to…

Blue whales occur in deep ocean waters around the world and so, they have a truly global distribution. In size, the blue whales of the southern hemisphere are bigger than those living in the northern hemisphere. The blue whales usually undertake long seasonal migrations in summer and winter. The poleward…

The Arctic fox (Vulpes lagopus) is also called polar fox or white fox. It earns its name due to its all-white coat. Although the coat turns brown in summer, in winter it becomes as white and snowy as the Arctic habitat. This is probably one of the most useful adaptations…