Complex sentence: The best-known is a liver chestnut with a flaxen mpooopcreate light flaxen manes and tails on otherwise chestnut horses are not yet fully understood, but they is not the same as the cream dilution.
Split into simpler sentences: The best-known is a liver chestnut with a flaxen mane and tail. The genetics that create light flaxen manes and tails on otherwise chestnut horses are not yet fully understood, but they is not the same as the cream dilution.