Some of the animals prefer to stay on the islands, adapting to the new environment. Among them were the very deermaras. When the climate became more favorable and damp, grassy vegetation gave way to shrubs and then changed their continuous jungle. Shifty plains animals have adapted to these changes, becoming very small. So the mazamara evolved - a forest rodent running around in the Great Antigua. At the age of four months young mazamaras weight reaches 3,5 - 4 kg. A six-month females can themselves produce offspring.