Summary: In 1494, among the colonization forces from Spain, eight pigs arrived in Cuba. With multiple uses in culinary and craft trades, as well as their general top-tier hardiness, pigs would naturally propagate themselves throughout the Caribbean, and then to Central, South, and North America--but they were also incredibly destructive.

Summary: The perfect biological weapon, although cute, was used by the 16th Century Spanish Empire to ravage the countryside! Its effects are being seen even today!