Why do humans use ‘baby voice’ when we speak to pets?

When humans talk to dogs, they often slip into a warm, high-pitched 'baby voice' that's strikingly similar to how they speak with infants. The Conversation reports that research confirms we really do use nearly identical speech patterns for both. This pet-talk raises pitch and makes speech more sing-songy and expressive, signaling safety and attention. But here's where they diverge: when we talk to babies, we over-enunciate vowel sounds to aid language development. Dogs get the warmth and emotional connection—but not the language-teaching layer. A twenty twenty-four study found that mothers with both babies and dogs actually speak more warmly to their infants, suggesting pet-talk is more flexible than baby-talk. And it works: puppies prefer pet-directed speech over regular adult speech, moving closer to speakers and paying attention longer.

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