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A newborn's brain is 25% of its adult weight and grows to 75% of its adult weight by 2 years of age

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14y ago
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14y ago

The average sized baby weighs 7lbs. 8oz. at birth

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13y ago

It can vary from ounces to maybe 15 pounds or even more. It depends on the family or health causes

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13y ago

Around 3 lbs

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11y ago

I was 4.8 when I was born

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9y ago

They can weight up too 3.5oz

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8y ago

16 trillion brain cells

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11y ago

1.3-1.4 kg.

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Q: What does the average brain weigh for a baby?
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