Plants are also poached such as cacti from the Southwest and orchids from Asia. Buying wildlife, such as wild birds, to keep as pets also endangers certain species. Many animals die during capture and transportation for sale. Then even more animals are captured for replacements. When a plant or animal becomes extinct, it is gone forever.
Extinction is a natural process and normally takes place over many years.
Dinosaurs once roamed the earth but they became extinct. Unfortunately, today, extinctions are happening too quickly, and unnaturally. Loss or pollution of habitat threatens the survival of many species. Habitat is the food, water, shelter and space that all species need in order to survive. When we build houses, factories, dams, roads, shopping centers and farms to grow food, we destroy and pollute wildlife habitat.