School of Salmon

Origin
The globalized network of world powers that had developed by the 20th century brought with it sophisticated espionage structures. This would prove integral in the coming world wars, and become more sophisticated as technology, allies, and even the public opinion of espionage at large, all changed. Arguably, one of the most interesting developments in modern espionage were the attempts to weaponize animals.

Animals have long served in human warfare for many purposes, but the advancement of radio equipment in the 20th century meant that animals could not only be trained, but also wired, and serve covert purposes. Pigeon-guided missles, bomb-dropping bats, and eavesdropping cats were all tested for usage at various points during the 20th century.

Salmon, as an anadromous species in general, hatch in fresh water rivers and migrate to salt water bodies to live out their adult lives until spawning, at which point they return to their ancestral breeding grounds, spawn, and then die.

Effects
Originally concieved by Japanese military intelligence in 1938, the original school of these specially bred chum salmon were part of a top-secret project titled "Kukyo" or "Cookoo." Designed by Dr. Satomora Gen, this family of salmon were intended to be trained to invade foreign waterways to breed, but always return to the same controlled spot in the ocean for their adult life. Ideally, the plan would have been to harness each fish when it came time to spawn with radio equipment that would have tracked water ways and strategic interest points therein, such as dams and bridges.

The project was officially abandoned in 1945 with the surrender of the Japanese following the bombings of Hiroshima and Nagasaki. However, it was unofficially still being worked on until the 1964 tsunami of Niigata, where the facility with the fish within it was destroyed, Dr. Satamora was killed in the flood, and the chum salmon were released into the Sea of Japan. Unfortunately, Dr. Satomora's despair and decades of work on this family of fish imbued with artifact properties.

Each of these salmon, when separated from the school, will release small pulses of energy that activate localized tectonic activity, which the school utilizes to find one another. The more fish that are separated, the more energy is released, and so they have the ability to create massive tectonic disturbances.

Collection
The fish were eventually collected, and are currently housed in a non-disclosed, Warehouse-controlled aquarium.