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Facts about Dogs 2
Today, canids are found in the wild on all continents except Antarctica and occupy a variety of habitats including grassland, temperate forest, rainforest, desert, mountain regions and tundra.
The average life span of a dog is from 7 to 18 years. Larger dogs have shorter lives.
More facts about dogs
Although the human nose has about 5 million olfactory cells, the sheepdog has 220 million, allowing it to smell 44 times better than a human.
