When you think of whales, do you think of Shamu, the black and white orca whale at Sea World? Or, perhaps you think of the huge whale that swallowed Pinocchio in the Disney movie. Both images are correct. There are two types of whales: toothed whales and baleen whales. Most whales have...

What’s the difference between walruses and seals? Both animals are expert swimmers and hunters. Both live in cold waters and both have thick layers of blubber to keep...