Why God sent the crow knows Cain How bury Abel?

Tweet

This story in the Qur'an: [5.27: 31] "Recite to them in all truth the news of Adam's two sons; how they each made an offering, and how the offering of the one was accepted while that of the other was not. He said: 'I will surely kill you. '(The other) said:' Allah accepts only from the righteous * you stretch your hand to kill me, I shall not stretch mine to kill you; for I fear Allah, the Lord of the Worlds. * I would rather you bear my sin and your sin and become among the inhabitants of Hell. Such is the recompense of the harmdoers. * His soul made it seem fair to him to slay his brother; he killed him and became one of the lost. * Then Allah sent down a crow, which dug the earth to show him how to bury the naked corpse of his brother. 'Alas!' he said, 'am I unable to be like this crow and so I bury my brother's naked corpse.' And he became among those who regret. " Show verse story Cain Who killed his brother Abel after the mite has Satan misanthrope, the first murder of soul human on earth, after killing his brother, carrying his body for days and remained puzzled what to do corpse of his brother, and God sent two crows quarreled, one killed another, then drilled a hole in the ground and put the crow who dead and buried it , Cain did like crow and buried his brother. In your opinion, why God sent the crows precisely to teach Cain how to bury his brother? Waiting for your opinions