The time is 360 million years ago--roughly 40 million years after the appearance of land plants, animals appeared on land equipped with lungs which efficiently use oxygen in the air. The place is along the coast where water meets land. Two kinds of land animals evolved from water animals. Animals without backbones (invertebrates) and animals with backbones (vertebrates). Invertebrates although, most of them are small, outnumber the bigger vertebrate animals. They account for about 70% of Eupleides' animal kingdom.

Deciduous Forest animals thrive on the lush greenery that typically abound in their environment during spring and summer seasons. During winter, these animals hibernate so as not to spend too much energy and store whatever they ate by fall as stored energy to maintain their minimum bodily functions. If they do not hibernate, these animals migrate to warmer regions of the continent.

Grassland animals are typically grazing mammals. There are a large number of perennial grasses that are highly productive when properly managed and that can support herds. Litter should be controlled so as not to tie up nutrients in the soil and block seedling growth.

Desert animals are truly remarkable in their adaptations for collecting and conserving water - a life giving source in Eupleides. These animals often limit their activity to a relatively short period of the year when water is available. Many desert animals live in deep, cool, and sometimes even somewhat moist burrows; and those that are active over a greater portion of the year emerge from these burrows only at night, when temperatures are relatively cool.