Nowadays, ecology is a very familiar science. Actually ecology is a new science. Biology is the science that studies everything dealing with plants and animals. Ecology is the science that investigates the ways where plants and animals live together. A biologist might study a pressed leaf or a dead animal while an ecologist has to look at living things in their natural surroundings. The word ecology derives from two Greek words. Eco comes from oikos which means house, logy comes from logos which means knowledge. Therefore ecology means the knowledge of houses, the study of the homes of plants and animals. Ecology is a very interesting science.