Why does your little archer seem so restless one moment and completely immovable the next — and how can both be true of the same tiny person?
The answer lives in a fundamental tug-of-war at the center of this combination. Sagittarius is a Fire sign that shifts and adapts, always chasing the next horizon; Taurus is an Earth sign that plants its feet and refuses to budge. In practice, that means your baby can be genuinely excited about something new — a different toy, a change of scenery, a stranger's funny face — right up until they decide they've had enough. Then the Taurus moon kicks in like a parking brake. The wanting-to-explore and the needing-to-stay-put aren't separate moods; they're happening at the same time, layered over each other. Your Sagittarius sun baby may drag you toward the unfamiliar, only for the Taurus moon to demand you bring a familiar blanket along.
Emotionally, that Fixed Earth moon means feelings land slow and stay long. This isn't a baby who cycles through moods quickly the way a purely Mutable fire child might — upsets dig in, and comfort has to be physical and consistent before the Sagittarian buoyancy resurfaces. The good news: that same stubbornness applies to joy. Once something delights them, it delights them deeply and durably.
Rising sign will shape which side of this combination strangers see first — an Aries or Gemini rising amplifies the restless, outward-reaching Sagittarius energy, while a Virgo or Capricorn rising may make the Taurus moon's patience and groundedness the first thing people notice about your baby.