The grasslands biome is the second largest land biome on Earth, and so for my fourth giant vivarium, I wanted to create the ultimate grassland ecosystem vivarium to attach to my other ecosystem vivaria. I had all my creatures and plants prepared and landscaped the grassland terrarium with my team. The result was a beautiful slice of nature that was ready to house its new menagerie of animals. Little did I know, Mother Nature had a surprise waiting for me in the grass.