Narwhals are some of the most unusual whales in the world due to their long, spiral-shaped tusk. They inhabit the Arctic Ocean, regularly diving deep under the sea ice. Therefore, scientists are now ...

Bowhead whales are the longest-lived mammals on Earth with some able to live hundreds of years. What’s more, Inuit hunters have observed these whales breaking ice over half a metre thick – ice strong ...

Add Yahoo as a preferred source to see more of our stories on Google. Narwhals inhabit the Arctic Ocean around Canada, Greenland, and Russia. ©Dotted Yeti/Shutterstock.com Because narwhals spend so ...