"The consideration of human or not is an emotional decision for humanity, not a scientific one." - Dogrock

Please Explicate. Are you talking about a philosophical, sociological or theological definition?

Science DOES define human: ~ Biologically, humans are classified as the species Homo sapiens (Latin for "knowing man"): a bipedal primate belonging to the superfamily of Hominoidea, with all of the apes: chimpanzees, gorillas, orangutans, and gibbons.
Scientific classification:
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Superfamily: Hominoidea
Family: Hominidae
Subfamily: Homininae
Tribe: Hominini
Genus: Homo
Species: H. sapiens

Binomial name
Homo sapiens
Linnaeus, 1758
Homo sapiens idaltu (extinct)
Homo sapiens sapiens

In any event... of course there is a scientific consideration for what is human.

"My God, it's full of stars!" -2010