Thousands of sheep in Australia die from ‘banging their heads till they crack open’ after eating poisonous planthttp://www.independent.co.uk/news/world/australasia/thousands-of-sheep-in-australia-die-from-banging-their-heads-till-they-crack-open-after-eating-poisonous-plant-9392432.html
Vets describe situation ‘like dealing with a thousand heroin addicts’