During the Overlord DLC, if you kill a Space Cow whilst in the Hammerhead (whether through ramming or missiles), the Hammerhead VI remarks “Analysis: Defenseless herbivores are no match for guided missiles.”

If you kill another one, the VI will state: “Humanity: 1, Local Wildlife: 0.”

If you continue to kill them, the VI will state: “The Galactic Humane Society reminds you that animals are people too.”

If you continue further, the VI will state: “Targeting systems do not require local wildlife to calibrate.”