we've evolved metabolic systems in which female sense the pheromones of other women in their menstrual cycle .. well is that not instinct what is killing things? greed? pleases give me a animal example of instinct so i can understand also on the rights thing dead ppl have rights trees do old buildings have rights too i think humans give anything rights these days tbh ^^ As far as rights go, laws were created to bring fairness to all, in reality this rarely happens but humans like to think that they treat everything/everyone fairly and the legal system is based upon this through the legislation that has been created and the common law that has evolved over time. However, as with everything created by man the system is flawed!
That's not an instinct as it's a metabolic response, it has variable responses and isn't the same across a species, which is what defines an instinct. An instinct is a complex nervous response which is done automatically as a response to stimuli, without thinking. An example would be the fact that a baby knows from birth how to breast feed, cry and grab onto things. Anything an insect does, such as a butterfly crawling out of a chrystalis after pupation is instinct.
As Darkademic reminded me yesterday, an instinct is a more complex response than a reflex, which is a simpler automatic response, like recoiling in pain. The fact some animals avoid predators & attack prey is instinct & done without thinking, though this isn't true for all animals and some, like meerkats, wolves and chimps, need to be taught like us, by their parents/pack, to perform alot of actions & rely less on instinctual responses to survive.
If your saying about trees, they don't have nervous systems so don't have true instinctual responses, but they do perform complex sets of responses to external stimuli, like producing toxins after a herbivore eating a leaf causes a chemical cascade inside the plant. It could be considered instinct.
Discussing the rights has gotten away from me & I much prefer discussing this, so I'm going to ignore the second half of your question. Hope this helps?