DAVID REDDING & ELIZABETH BOAKES: ‘When Sudan the white rhino was put down by his carers earlier this year, it confirmed the extinction of one of the savannah’s most iconic subspecies. Despite decades of effort from conservationists… Sudan proved an unwilling mate and died – the last male of his kind… But what about species … Continue reading Humans are causing animals and plants to go extinct 1,000 times faster than their natural rate, warn scientists