But some researchers propose that reforestation could combat habitat loss and animal extinction.

Later the species has become an icon on animal extinction.

But Cape York Peninsula remains fairly unspoilt with intact and healthy river systems and no recorded plant or animal extinction since European settlement.

The book was criticised in the New Scientist for some of his conclusions such as linking animal extinctions to reversals in the earth's magnetic field.

He points to large-scale animal extinction and wasteful agricultural practices by North American Indians before 1492.

Natural extinctions do occur, but human beings play an integral role in animal extinction and preservation.

He is an exponent of captive breeding, to forestall animal extinction.

As a result of environmental hazards, animal extinction and genetic engineering, nature is no longer seen as a paradise that forever regenerates itself.

The species has become an iconic symbol of animal extinction.

No one worried about animal extinction.