Human-Animal chimeras(hybrids): They're being created, is it ethical?

I think We are passing boundaries,We shouldn't be passing by making Human-Animal Chimeras! Who's to say we don't end up making voratious monsters who will try to destroy Humanity?

I am all for anything that is for the good of humans.
If we can harvest needed human blood from the veins of a sheep, it is something we should look into.

@MDSJR1967
Humans are the king of destruction/domination I cannot imagine anything under 100% human will ever match us. Think about it, sad I know but true.