Kruger National Park officials have raised the alarm over a mass poisoning that killed over 120 vultures, calling it one of the worst in recent years and warning it could push the endangered species towards extinction. Rescue teams managed to save 81 vultures through an unprecedented joint operation. Experts warn that the poison used - an organophosphate so lethal it's nicknamed 'two-step' - poses severe risks to humans, pets and water systems, with even trace exposure potentially fatal.