Complex sentence: One of these breeds was eventually exported to Iceland by settlers, producing the modern day Icelandic horse, which bears a strong resemblance to the Mongol horse and lives in much the same way, foraging freely off the land during all seasons.
Split into simpler sentences: One of these breeds was eventually exported to Iceland by settlers, producing the modern day Icelandic horse. The Icelandic horse bears a strong resemblance to the Mongol horse and lives in much the same way, foraging freely off the land during all seasons.