When living conditions became harsh, there was a tradition between Inuits of Alaska to leave the newborn babies whom they couldn't afford to get enough food. They carried them in cold desert and left them to die. According to indigenous belief such a baby becomes Angianak, a vengeful spirit who returns and drinks the blood of its relatives. At night it sneaked into a house where his family lived and sucked the breast of its mother. Eventually Angianak becomes stronger and gets the ability to take forms of wild animals and killed members of its family one by one.

A company of brothers had a single sister, and would not allow her to marry. Nevertheless, having many suitors, she finally came to be with child; and because of her brothers' reproaches, she secretly had a miscarriage; but the child got intellect, and became an anghiak. It picked up the skull of a dog, using it as a kayak, and the bone of a man's arm for a paddle. Every night it used to creep into the house and lie down to suckle its mother's breasts, but during the day-time it was about pursuing her brothers when they were kayaking, and made them capsize and perish one after another. Having accomplished its revenge, it repented its deeds, and fled to the north, where it slipped down in the doorway of a house in which a conjuration was going on. The angakok (by means of his second — sight) at once observed its approach; and when the people of the house had got a light, and went to look for it, they were all frightened to death. It then became still more powerful, but went back again to its mother's abode, and found a refuge in a heap of rubbish. It now happened that the angakok of the place was about to perform a conjuration for the purpose of finding out what had caused the brothers' destruction. The sister, on being examined, first denied, but finally she confessed her sin, saying, "What I brought forth was no real child." No sooner had she pronounced these words than the anghiak felt a pain in its head, and while she continued her tale, it lost its senses and died.

Tales and Traditions of the Eskimo. The Anghiak (1062: p.439-440)

The only escape from Angianak is to change the place of stand. To prevent a dead child from become Angianak one must not to name it because it is generally believed that a name animates the soul. Interestingly, get rid of such creature in similar beliefs on Faroese islands and Scandinavia is to name (to baptize) it.

The tradition to kill or to leave an unwanted or weak children was widespread among the northern people due to harsh living conditions, although the depth and breadth of such cases is now in dispute. Angianak corresponds in some ways to Niðagrísur in folklore of Faroese Islands and Utburd (or Myling) in Scandinavia.