The sign would read, "In memory of hundreds of fish who suffered and died at this spot," to remind tractor-trailer drivers of their responsibility to the animals who are "hauled to their deaths every day."

"Research tells us that fish use tools, tell time, sing, and have impressive long-term memories and complex social structures, yet fish used for food are routinely crushed, impaled, cut open, and gutted, all while still conscious," the letter continued.