For some researchers, evidence of these complex communication systems -- emitting noises via gas when in distress -- signals that plants feel pain. Others argue that there cannot be pain without a brain to register the feeling. Still more scientists ... Trees in a forest, for instance, can warn their relatives of insect attacks. read more
As soon as the plants hear the noises, they respond with several defense mechanisms [source: Feinberg]. For some researchers, evidence of these complex communication systems -- emitting noises via gas when in distress -- signals that plants feel pain. Others argue that there cannot be pain without a brain to register the feeling. read more
Grass fed humanely treated animals are the best. Do your own research and just don't be ignorant because ignorance kills. I don't believe that plants feel pain because they do not have a nervous system and they don't have the neurons to carry pain signals. read more