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Category: Earth

How big is a polar bear? Height, length and weight by sex

Adult male polar bears usually weigh about 350–590 kg (770–1,300 lb), roughly four to six and a half times the weight of an average American man; adult females usually weigh…

What is underneath the ice in Antarctica?

Antarctica ice sheets hold a vast amount of lakes underneath, these growing and shrinking lakes are the real gems of intensely cold water. There are more than 400 known lakes…

How Much Oxygen Does Coral Reefs Produce?

Coral reefs are complex structures underwater deposited by corals. Corals are immobile small marine invertebrate animals that take root on the ocean floor. They are colonial animals and classified in…

Why Are Coral Reefs Important – Benefit of Coral Reefs

Coral reefs are huge structures underwater that are deposited and built by coral polyps. While corals are marine invertebrates and colonial animals that belong to the class Anthozoa and phylum…

What Do Arctic Foxes Eat – Arctic Foxes Diet

The Arctic fox is a small fox species found in the Arctic tundra habitat of the Northern Hemisphere. They are opportunistic feeders and eat whatever they can find, such as…