For the most part, you run. They are just as intelligent as us, if not more so. Unlike us, they have no bones and cannot move. But if you attack it then they will attempt to defend themselves. They defent in many ways, and attack Thorns- they will only just hurt you, but its enough to give them the edge Poisoned thorns- strong enough to kill a great whale Fruit bearing- these fruits will evolve you, reduce your life expectancy or just plain kill you. Gas giving- from oxygen to super acid Life draining- it will attatch to you and then suck out your blood. They may wrap around you.