Do you know guyzzz?????
There are many animals in the world which have a powerful sense of smell such as tiger, dog, bee etc.
But this quality of dog is very helpful for us.
There have been many cases where dogs have been able to lead the police to the scene of the crime. Many people like to have a dog in their house to safeguard against theives. They can warn us advance if anything unusual is likely to happen.
Most animal depends on their sense of smell to find food. In the polar areas dog and bears can dig food below the snow because of their strong sense of smell.馃馃
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From @pushpendra83