Why some animals faces with the threat of extinction?

ANSWER: Animals are endangered due to many different factors although it is true that in many cases humans are largely responsible for endangering animals. Humans may take the land that an animal is using for a habitat and then the space may be used for other things. Humans are responsible for the killing of animals; for food and resources but also sometimes just for a sport such as fox hunting. Also, natural factors could cause animals to become endangered. The world is always changing. Natural disasters cause a big impact of animal species but also smaller natural factors may cause problems. In addition, global warming and pollution may cause a species to become endangered because the conditions, for example the temperature, that the animals are used to living in could be changed and therefore the animal may not be able to adapt appropriately.