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Why do some animals stay loyal while others stray? The answer lies in the Prairie Vole’s brain. Unlike their promiscuous cousins (the Meadow Vole), Prairie Voles have high levels of vasopressin and oxytocin—the same "cuddle chemicals" that drive human attachment.

The primary driver of exclusive social relationships in animals is the difficulty of raising offspring. If a single parent cannot successfully feed and protect the young, cooperation becomes mandatory. In species where babies are born highly vulnerable (altricial), two parents are statistically much more successful than one. Resource and Territory Defense www m animal sex com exclusive

: Partners mate strictly with each other, which is incredibly rare. Why do some animals stay loyal while others stray