Yes they do, you just need the vision to understand their language and you are one of the very few who I know can understand plant language.
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There was a study which I read a long time back and is now hazy. They were measuring electrical conductivity of plant tissue. One person injured the plant. Now when ever that particular person entered the room the plants conductivity spiked
. Call it sentient or not, up to you.
Regards,
Arif.
