Generations of coal miners relied on canaries in cages as an early-warning system to detect toxic or explosive gases. The birds, being more sensitive than humans, would die or get sick first, giving miners a chance to escape or put on protective breathing equipment.
Tony Carnie
Large herds of hungry domesticated cattle are often seen as a threat to the future of Africa’s shrinking wildlife conservation areas. But, could it be that cattle and pastoral communities are actually part of the solution?