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Pronunciation Guide
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Listen to native speakers pronounce “field mouse” in real conversational contexts with synchronized timestamps and subtitles.
But for nearly every mammal you look at, you keep landing at the same figure of around a billion heartbeats.This is why nearly every mammal from a tiny field mouse to a gazelle, from a cheetah to a hippopotamus, they all get around a billion heartbeatsbetween the day they're born and the day they die.