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Evolution has resulted in the development of both herbivores and carnivores—but how? What type of food did extinct ...
Climate change is occurring behind the scenes of a seemingly advancing world and its effects are felt in the Arctic.
The spiraled tusk juts from the head and can grow as long at 10 feet. Unlike some whale species that migrate, narwhals spend their lives in the Arctic waters of Canada, Greenland, Norway and Russia.