twins linus, left, and maarten have more sweat glands and tooth precursors than their older brother joshua, 5, after being treated with a drug in utero.
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. the nutritional content of fruits and vegetables, but frozen produce tends to hold up pretty well.
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"there may be subtle differences (between animals and humans) that we don't know about," klein said.
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. 7 eco-friendly alternatives to plastic straws to help save the oceans
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