Al Jazeera: Nearly half of the world's population of the saiga - a species of antelope older than the mammoth - were wiped out by a freak pathogen last year, in an event scientists are blaming on rapid temperature fluctuations caused by climate change. Over 200,000 of the saiga, a small antelope native to central Asia, died over the course of two weeks in Kazakhstan's Betpak-Dala region in May, pushing the critically endangered species to the brink of extinction. In the run-up to this year's breeding season,...