What are ‘horse latitudes’?

The horse latitudes are the areas in the northern and southern hemispheres of the Earth, lying between the two big wind zones: between the trade wind and the westerly wind areas. In these areas, there is almost always no wind. Therefore, the sailboats of the early sailors were stalled often for weeks. The region of the subtropical high was given the name ‘horse latitudes’ because the sailors who transported horses on their sailboats threw their horses and cattle overboard to save on provisions during the long periods of calm. The areas were reported to be ‘strewn with bodies of horses’. This is supposed to be one of the reasons why these areas came to be known as horse latitudes.