Study shows how scientists can find missing species

SINGAPORE: More than a third of mammal species considered extinct or missing have been rediscovered, a study says, and a lot of effort is wasted in trying to find species that have no chance of being found again.

Species face an accelerated rate of extinction because of pollution, climate change, habitat loss and hunting and that this rate of loss is putting ecosystems and economies at ever greater risk, according to the United Nations.