The terrifying phenomenon that is pushing species towards extinction

Scientists are alarmed by a rise in mass mortality events – when species die in their thousands. Is it all down to climate change?There was almost something biblical about the scene of devastation that lay before Richard Kock as he stood in the wilderness of the Kazakhstan steppe. Dotted across the grassy plain, as far as the eye could see, were the corpses of thousands upon thousands of saiga antelopes. All appeared to have fallen where they were feeding.Some were mothers that had travell