Habitat Changes

　According to UN statistics, 200 animal species become extinct on our planet every day.// More and more species are becoming endangered and eventually dying out.// Of course, some species become extinct due to natural reasons.// However, quite a few wildlife issues are caused by humans.//
　Humans invade the natural habitat of many species.// One of the main reasons for this is the fact that communities need to build roads, grow crops, and dispose of waste.// For instance, humans have for a long time used the oceans as a garbage dump.//
　Seeing marine wildlife becoming endangered is particularly disturbing.// Eighty percent of the ocean is unmapped and unexplored, and yet we are continuing to dump waste there at an astonishing rate.// That means we may be causing some species we haven’t even discovered yet to become extinct.//