Researchers have discovered that genes are certainly responsible for many personality traits. But even full siblings don’t share all the same genes. And, more importantly, one foal’s world can vary greatly from another’s. | Photo: iStock

Once a foal hits the ground, what factors—from genetics to environment to relationships with other horses—ultimately impact his temperament and traits?

What a cutie, that beautiful newborn foal! And he looks just like his talented full sister—same coloring, same big, soft eyes and inquisitive ears. He’s going to grow up to be just like her: brave, interested, and willing … right?

Well, maybe not.

Researchers have discovered that genes are certainly responsible for many personality traits. But even full siblings don’t share all the same genes. And, more importantly, one foal’s world can vary greatly from another’s. The environments and experiences and relationships in those different worlds can significantly impact a young horse’s demeanor and help shape him—for better or for worse—for life

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