How could the introduction of new species harm the endemic species of the habitat
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Answer:
One consequence of globalization is that in addition to people and products moving across the globe, wildlife has been transported as well. This practice of transporting animals from their native regions to new areas dates back thousands of years. The Roman Empire frequently brought back animals from foreign lands to use for entertainment in the Colosseum or used them for military purposes.1 The practice was also a common part of European explorations of the New World, as explorers would bring back novel specimens to their home countries for zoological examinations or to arouse interest in future expeditions.
In many cases, the transplanted animal or plant does not thrive in its new environment. A lack of proper food sources combined with the wrong climate can make for a short lifespan for the animal in its new home. In other cases, however, the specimen thrives and is able to successfully reproduce and spread throughout its new habitat. When this happens, the plant or animal can wreak havoc on the new area and become an invasive species.