mammiform

例句：

1. 1. Mammiform creatures are found in many parts of the world.
   哺乳动物在世界上的许多地方都有发现。
2. 2.The mammiform creature is a new species discovered by scientists.
   这种哺乳动物是科学家发现的一个新物种。
3. 3. Mammiform animals have evolved to survive in harsh environments.
   哺乳动物已经进化成能够在恶劣环境中生存。