There are some plants and animals extinct or endangered mostly because of the human being's self interests. Some plants can be very useful for treating several kind of illness and also it is possible to use some animals hair and leather to make clothing. Another reason is the deforestation. Over the years there was a demand to have more available region to build houses, then villages and finally large cities. The trafficking of animals has turned extinct animals in the worldwide.
Espero ter ajudado!!! :) ***it's possible to improve this small text!