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Two pilot whales swimming in the ocean.
| 3 min read
A new analysis method to measure PFAS chemicals suggests while older PFAS are declining, newer PFAS chemicals may be accumulating in the environment in unexpected ways.

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Shroud Splits Scientists

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Polish Scientists Dealing with Decline

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Panel Chosen to Judge SSC Bids

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Tracking Research in the Fast Lane

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LaRouche Crackdown Shuts Two Magazines

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Key Technical Fields Listed

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Taking a Measure of MacArthur Prize

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Panel Refines NSF Centers

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More AIDS Funds Asked

Illustration of a developing fetus surrounded by a clear fluid with a subtle yellow tinge, representing amniotic fluid.
January 2026

What Is the Amniotic Fluid Composed of?

The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.

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