Disappearing Animals

Like individual animals, animal species also eventually die out. The experts believe that and say until 18th century one species go out of sight from the earth every four years. In 19th century this had increase to one species per year, but it's not the end, experts keep believing by 1975 it was one thousand species per year and today just now animals are disappearing at the terrible rate more than 40,000 species per year. Most of them are endanger by pollution, habitat ruin and unreasonable utilization. They caused by humans like you that read this article, all of you, shame on you!
The international union for protection of nature has produced a number of division that describe the danger level of animal species:

• A species that has died out completely like dinosaurs. The experts called them extinct.

• Animal species that only live in zoo or on farm, etc like several horse species. You can't find them at the wile.
• A species is classified judgmentally endanger without any delay of dying out completely and they need protection for survive as soon as possible like Siberian tiger. 
• Animal species, they are in high risk but they don't dying out immediately. The giant panda is the famous example.
• Defenseless animal species, they are in less trouble than endanger animal but they are still decreasing. The African elephant is the most important example for this part of categories.
• Animal species that they aren't especially in endanger. A lot of animal live in this division.

The most important thing we should to remember is the different between humans and animals is the mind.

We have to try to keep this different.