The closest thing to primitive down here is living in a beach-front retirement condo. I know these things. For forward looking infra-red. It was developed for chopper pilots in Vietnam. Detects body heat at 300 yards.
People get to looking around.
Next thing they know, something eats them. If we become blinded by the beauty of nature we may fail to see its cruelty and violence. Killing livestock, terrorising the people. Witnesses described them as primitive looking men with piercing red eyes. Became known as the Moth Men.