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Are Polar Bears Endangered?
science.howstuffworks.com/environmental/green-science/polar-bear-global-warming.htm
Polar bears and global warming are getting attention from conservationists and the general public. See why polar bears are threatened by global warming.
How Narwhals Work
animals.howstuffworks.com/mammals/narwhal.htm
Narwhals, the unicorns of the sea, are unusual tusked whales who like icy ocean waters. See what else makes narwhals interesting whales indeed.
Polar Bear vs. Grizzly Bear: Which Bear Is Bigger and Tougher?
animals.howstuffworks.com/mammals/polar-bear-vs-grizzly-bear.htm
When it comes to massive, powerful bears, one showdown often comes to mind: polar bear vs. grizzly bear! These two bear species may look similar, but they have distinct differences in habitat, behavior and even diet. So, what happens when these giants of the animal kingdom cross paths?
How Icebergs Work
science.howstuffworks.com/environmental/earth/geophysics/iceberg.htm
Icebergs are a lot more than just giant chunks of floating ice. Learn about icebergs and find out how icebergs can affect the ocean around them.
How Polar Bears Work
animals.howstuffworks.com/mammals/polar-bear.htm
Polar bears are iconic for their shocking whiteness, ferocity and sheer size. Learn about polar bears, polar bear diet and polar bear habitat.
Why Grolar Bear Numbers Increase With Climate Change
animals.howstuffworks.com/mammals/grolar-bear.htm
The grolar bear, also known as the pizzly bear, is a hybrid animal that's the result of crossbreeding between a polar bear and a grizzly bear, two species typically separated by geography and habitat.
Why Is the Thwaites Glacier Called the 'Doomsday Glacier'?
science.howstuffworks.com/environmental/earth/geology/thwaites-glacier.htm
Scientists are concerned that the Thwaites Glacier is melting at a rapid pace, though some don't love the name "Doomsday Glacier." What does the rapid melt of this huge glacier mean for the future of our planet?
What Is a Group of Seals Called? Depends Where It Is
animals.howstuffworks.com/mammals/what-is-a-group-of-seals-called.htm
Ever see a bunch of seals lounging on the beach and wonder what to call them? Good news: You're not alone. By asking, "What is a group of seals called", you've walked into a long tradition of humans naming animal collectives in colorful ways.
What 'An Inconvenient Truth' Got Right (And Wrong) About Climate Change
Now that its sequel is out, where did Al Gore's landmark environmental documentary hit the mark? What did it get wrong?
What Is a Glacier? Everything to Know About These Ice Masses
science.howstuffworks.com/environmental/earth/geophysics/glacier.htm
Glaciers are rivers of ice and are the largest moving objects on Earth. Learn about glaciers and find out how much freshwater are frozen in glaciers.