we as humans need to be a voice, for those that don't have one.  These animals first of all where taken from their natural habitat, to entertain people, instead of been respected and let them live free, like we also like to live. However if taken in captivity, then we should be responsible for the animal's wellbeing.  Not kill then went a mistake is done by a human, and have the animal pay the consequences, by killing them.  We are no better than them. They are occupying the same planet that we are, and they  have been here long, long before we have. They deserve to be respected as we like to be respected aswell.