Speculative Fact #327: A Living Weapon

Nature has equipped animals with a variety of natural, built in weapons. In addition to large claws, fangs can be armed with venom. The tentacles of a jellyfish are equipped with powerful toxins, and the saliva of a komodo dragon is rich in a deadly bacteria that can kill its prey.
            Researchers have modified human cells and turned them into tiny lasers. The procedure can make cells easier to tag and track, which could be useful in combating cancer. The enhancement is done by creating a cavity in a cell and then injecting a dye which can emit light after being excited.
            Marvel comics has a character named The Living Laser, but your fiction could take that down a literal approach.
            In The Kirlian Quest by Piers Anthony, an alien race called The Slash are covered in laser lenes which they use to see and communicate, and if threatened, to shoot concentrated beams. Maybe there are humanoids in your study that undergo enhancements to become living weapons or serve as nodes in a vast laser communications network.

-Jonathan Hernandez