Horses were in the American continents for a long time, when for an unknown reason, they went extinct. ??
Horses then were reintroduced to the America's when the Conquistadors from Spain arrived to explore the new world. (only the Spanish horses)
The American mustangs/qh's have always been around they have never gone extinct; hence 'American' in their names
they also migrated across the ice bridge as the cave men, and so many other animals did looking for food.
here is a link: http://www.madsci.org/posts/archives/2000-06/960351408.Zo.r.html
to the answer too
have you ever heard of the assateague and chincoteague? Well they say that those horses were on a ship and were in a ship reck. The horses swam to shore (US) and they stayed there and bred.
Horse ancestors were orginaly on North America, but soon died out. Horses as we know them were brought to North America by Europeans.
The early European explorers brought the horse with them.
Horses were introduced to the Americas by Spanish Conquistadors.
The very first horses know of to be in America were brougth over from Spain by Hernando Cortez.
Horses were first reintroduced to the US by the Spanish explorers when they brought Sorria, Lusitano, Andalusian, and Spanish Jennet stock with them.
Spanish brought horses to North America in the 1500's.
The Spaniards brought them over when they found the 'New World'
horses became extinct in the us un'till columbus brought them back
The Spanish brought most of the horses to America.
Its said that the Spanish first brought horses over when they came over searching for new land
the horses food is brought to them. . .
conquistadors brought wild horses over when they came in the U.S.A from spain.
The first vacuum was so large it was brought to a house by horses.
The Iroquois got horses after the Spanish brought them over to America in the 1600s. There were no horses in America before the Spanish introduced them to the Indians.
The horses brought to Australia by the First Fleet, came from England.
The first modern horses in California were brought by the Spanish.The first cattle in California were brought by settlers on wagon trains from the US.
The original Spanish explorers brought horses to North America. Many of those horses were turned loose when the Spaniards returned to Spain and they intermingled with native horses (horses that came from China over the ice cap). The Mustang is the result of that interbreeding. The first importation of Spanish Arabian horses was in 1934 when James and Edna Draper (from California) imported the first purebred Arabian horses to the United States.
When the spanish came over they brought horses and gave them to the Sioux.
When Colombus discovered the New World. They brought all kinds of live stock to the Americas then, back in 1492.