What a beautifully mysterious creature.. existing on earth for over 650 million years. They do not have brains, and use sensory organs to identify light, odor, and touch which in turn means..
they do not have the ability to be deliberately aggressive, yet an accidental brush or touch will trigger an involuntary sting which can be very toxic and painful, and in some cases even fatal. Whhaaattt? Simply amazing if you ask me.