通称：水龙兽
物种：水龙兽目
时代：二叠纪晚期-三叠纪早期
食性：食草动物
性情：忠实型
野生
水龙兽是一种小型食草动物，在岛上多数区域都很常见。它大概只有2英尺长，处于食物链低端，靠吃小型植物为生。岛上的毒虫似乎对它几乎没有任何影响。 尽管水龙兽只是岛上的一种小型食草动物，但它却拥有难以置信的坚韧生命力。它脱离麻痹状态和恢复生命值的速度远胜其它生物，因此想要弄晕一头水龙兽是一件相当难的事情。
家养
毫不奇怪，水龙兽驯化之后是极度忠实的宠物。它学习速度非常快，因此它可以比多数生物更快的积累经验值。 不仅如此，这还会影响到周围的生物，让它们学习和获取经验值的速度同样加快。因此，水龙兽对于任何部落的狩猎小队来说都是出色的额外加成。
Common name: Lystrosaurus
Species: Lystrosaurus amicifidelis
Time: Late Permian-Early Triassic
Diet: Herbivore
Temperament: Loyal
Wild
Lystrosaurus amicifidelis is a small herbivore, common to much of the Island. Only about two feet long, it is not high on the food chain, and eats small plant life. The Island's poisonous insects seem to have little effect on Lystrosaurus. Despite being among the Island's tinier herbivores, Lystrosaurus is an incredibly resilient survivor. It recovers its torpor and health much faster than most creatures, which makes rendering a Lystrosaurus unconscious a rather difficult affair.
Domesticated
Not surprisingly, Lystrosaurus is an extremely loyal pet once tamed. It's a very fast learner, so it gains experience much more quickly than most other creatures. Additionally, its presence nearby appears to inspire allies, making them learn more rapidly as well. Thusly, Lystrosaurus is an excellent addition to any tribe's hunting party.
