cows ?? that is funny they can't speak for themselves
so no way to know I suppose... humans, yes many they
are not nice but you do forget what happened most people say
Hail Satan God of all
http://luciferianliberationfront.org/aliens.html
It is also my belief, that they also commit 'ritual murders' as well, very akin to the jews ritual murders, except that since the grey's have a hive-mind, if one gains a souls power, the all do and can use the fear energy in the war being fought