Horses
Horses and donkeys were (1) ... comparatively late compared with other animals, probably around 4000 BC in Western Asia. By that time, people in many parts of the world were no longer (2) ... on hunting and gathering their food, but had become nomadic stockbreeders or settled farmers, raising livestock such as cattle, sheep and goats and, in the static communities, growing and harvesting food plants.
They still hunted wild (3) ...
, but could now do so with the (4) ...
of domestic dogs, the close animal companions who also helped them to protect and control their flocks and herds. Their needs for meat, milk, skins and wool were being (5) ...
, and it may not have been immediately obvious to them that the horse had anything more to offer than the occasional (6) ...
of the chase and a different type of meat. The horse did have something more to offer. It had the potential to (7) ...
nothing less than a revolution (8) ...
power and transport, a dramatic development that transformed the ability of humans to wage war.