Most modern-day racehorses are Thoroughbreds. The name accurately describes this breed of horse: they all have been very thoroughly bred. The first Thoroughbred to reach America, a stallion named ...

Narrator: In the horse-breeding world, genetics is king. Wealthy investors are willing to pay high prices for proven winners' semen, hoping that the resulting foal provides a large return on ...

"With this new information, we can better reconstruct the last 1,500 years of horse breeding history and evolution." For decades, the Y chromosome has been difficult for scientists to study.

Space constraints in Hong Kong and a concerted focus on racing – 96 per cent of Hong Kong’s 1,200 horses are geldings – ensure that there is little desire to shift to a breeding-oriented ...