Jumping Beans

At first you might think that Jumping Beans are no danger. They are small and only eat plants.... Well, you are wrong. On Mars, things are never as they seem. Jumping Beans are highly agressive and mean. While they don't do much damage and are easily killed, they usually attack in big packs, making them a really big annoyance.

Usually found near berry patches.

Lore
''The rabbit-like jumping bean looks almost comical as it traverses the Martian landscape with a peculiar hopping gait. Don't be deceived by its 1ooks, however, or its herbivorous nature -- beans are quite aggressive. In fact, they're just plain nasty, seemingly for the fun of it. (How else do you explain an herbivore that attacks without provocation?) A pack of jumping beans is quite dangerous, giving pause even to the carnivores of Mars.''

- from "Mysteries of the Red Planet", Martian Dreams