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Ivy covered tree
In article , DaveDay34
writes There seems to be much confusion about ivy. I'm not sure that I want to go into all the details and explain it all to those who don't understand, but I think it's enough to point out that to be a scavenger you have to be able to recognise that something's dead, and that it can therefore be 'scavenged'. Plants (including ivy) are unable to make this distinction. Put simply, plants don't 'think' in the way we recognise that animals can. Some years ago urg had a long and contentious, though mostly good natured, discussion in a thread called 'A philosophical approach'. That discussion centred mostly on how plants were believed to act and react. It revealed some deep seated unease among urg contributors about the matter. It emerged that little proper research has been done in the area, though there is quite a lot of literature available to 'prove' all viewpoints held. I would appreciate details which show that plants cannot distinguish between something living and dead though, that is a new theory to me. I agree that plants don't think. That is because they do not have a brain. They also don't see or hear because they don't have eyes or ears etc. etc. As living beings though, they carry out all the functions of animals (including humans) other than moving about, but they do it by different means. For example, though plants do not see with eyes, they are able to detect direction of light, and they are able to work out how to react to light. They have their own ways, different from animals, of eating, drinking, creating a habitat, procreating, protecting themselves and their species, adapting to their environments and evolving. All that requires some very sophisticated form of intelligence, equivalent to though different from that used by animals. Plants are entirely independent of animals for their survival, they were around on this planet long before animals developed. Animals however, including humans, are totally dependent upon plants directly or indirectly for their food and for almost all other things they do. In a world of food shortage, a better understanding of plants and how they operate could be of great benefit to us all. -- Alan Gould |
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