First of all, angels are not sexual creatures. Therefore you are in error when you think that there exists something half human and half angels. Angels do not approach humans for sexual intercourse.
Additional Comments:
I would like to add this information: In the 6th chapter of Genesis The Bible does speak of hybrid man /fallen angels (demons) called Nephilim. The name means "Fellers" or one who makes others fall. They were vicious beings whose violent exploits are most likely the basis for much of ancient Greek mythology (the mythological demigods, such as Heracles and the Babylonian hero Gilgamesh strongly resemble Nephilim. These hybrids were killed when God brought the flood of Noah's time. After that the fallen angels were no longer allowed to materialize in human form and as Mysticunknown99 states above: Angels can not approach humans for sexual intercourse.
Nephilim
NO. NO NO NO NO NO. did you even read the book? shadowhunters are half human, half angel. he Angel Raziel poured his blood into the mortal cup, and let a human drink from it, making the human the first shadowhunter.
No, Caliban from Shakespeare's play "The Tempest" is described as a deformed and monstrous creature, but he is not half fish and half human. He is usually portrayed as a wild and uncivilized being with human and bestial characteristics.
You would call it a Nephilim: a half human, half fallen angel. Vampire women can't get pregant and normal angels would not go round having sex with human women, only fallen angels would, therefore a fallen angel must have have sex and made a child with a human woman, then she would've given birth to the Nephilim baby and then she would have somehow turned into a vampire.
Renesmee is not a vampire, she is half-vampire and half-human. Also her vampire characteristics are just an addition to her human characteristics. She has a beating heart, blood in her vains, however, in addition to those she has vampire characteristics. That is why Jacob can imprint on her, because she is a human baby with vampire powers, not because she's a vampire.
half devill half angel half devil (serbain) half angel (AMERICAN)
some demons are half angel they are called "half-breeds".
he is half angel and half something else that nobody knows.
human characteristics of Italy
For an angel to be with a human in any type of sexual activity would be a sin.
Half Angel - 1936 was released on: USA: 22 May 1936
There are 3 characteristics of human teeth -thecodontheterodontdiphiodont