You must have seen crows in your daily life. Sometimes they sit on the roof of the house and sometimes they make noise on the branch of a tree. You must be thinking that they are ordinary like other birds, but do you know that the brain of crows (Crow trained to pick up cigarette butts) is as sharp as a computer? In countries like France and Sweden, people did something with crows that will shock everyone. People gave such training to crows that they can protect the environment and…
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