#8217; most dangerous rival. Humans’ carelessness, ignorance and greed caused many animals to disappear from our planet. Over hunting is one of the threats that leads to animal extinction. In the third world countries, some of the animals are hunted for their skins or tusks thus endangering the existence of those animals. Also because of the increasing population, the humans are destroying the animal habitats in order to increase the living area. Pollution produced by the humans and dumped into an animal’s environment also tends to endanger our species. Animal extinction are primarily caused by human activities, but there are also other natural factors which contribute to the reduction of animal life. Examples of these factors are natural disasters, climate changes, and unsuccessful competition for resources with other species. Of course, there is no solution that helps save the animals from the natural factors, but there is a solution to stop the humans from leading to the extinction of the animals. Very strict laws should be applied to control and stop excessive hunting and prohibit killing rare animals. If these three major problems continue to increase, then our mother earth will no longer be the wonderful planet that we once lived on. But we should not forget that science and scientists have great challenges to limit the magnitude of the three mentioned problems. Increasing the unit of production in agriculture, industry as well as in services will lessen the degree of those problems. The world achievements are great in the present century and for sure will be greater in the century we are approaching. More rational use of resources, more effective remedy of pollution and more scientific family planning will surely change the pessimism to optimism in out beautiful world. To conclude, all nations, rich or poor, have great responsibility to challenge the problems that confront our world. Indeed it is a healthy sign that n...
