Original sentence: Many hunter gatherer tribes would actually apologise to the animals which they killed, excusing themselves on the basis that they had to eat the animal in order to survive.Recent experiments have shown that feelings are not limited just to animals but to plants as well , and experiments by Jagadish Chandra Bose have proved that plants can respond to environmental and physical changes.This would suggest that painlessly killing a human was acceptable — something very few of those people would agree with, euthanasia killings notwithstanding
Edited sentence: Interestingly, many hunter gatherer tribes would actually apologise to the animals which they killed, excusing themselves on the basis that they had to eat the animal in order to survive.Interestingly, recent experiments have shown that feelings are not limited just to animals but to plants as well , and experiments by Jagadish Chandra Bose have proved that plants can respond to environmental and physical changes.This would suggest that painlessly killing a human was acceptable - something very few of those people would agree with, euthanasia killings notwithstanding