Sunday, June 17, 2012
Human and other living creatures
By 1990, the numbers had risen to over five billion people will be looking for shelter and food somewhere on the earth. One species cannot increase explosively without affecting all the others. Since about 1700, at least 300 species of vertebrates have become extinct. Now a days we can observe in detail most creatures that are being lost, and the estimate is between 50 and 100 species a day. If the present trend continues at least a quarter of all living things will have disappeared before the human population reaches its levels out, probably in the middle of 21st century.