The Arctic Ocean is an interesting area for many reasons. It’s one of the few places on Earth besides the Antartic that gets covered up in ice for a large part of the year. It also is an official landmark while being made up (entirely of ice). With the effects of climate change, the (amount of ice) actually in the Arctic is shrinking each year.

Narwhals

These memorable mammals are interesting for many reasons. For one thing, their famous tusk is actually an over grown tooth!

image credits:
https://ocean.si.edu/ocean-life/marine-mammals/why-tusk-real-life-unicorns-sea-and-tusks-make-them-famous
http://time.com/4773238/russia-cold-war-united-states-artic-donald-trump-barack-obama-vladimir-putin/