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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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Journal editor quits in conflict scandal

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Long-term potentiation hypothesis gets boost

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Steinbeck's scientific muse

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Stem cells from a single cell?

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Research winning war with extremists, says group

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Stem cell disclosure resisted

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NASA astrobiology gets new director

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Speed-dating for science TV

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Aliens in the stacks

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U.S. names new NCI chief

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Long lifespan inhibits tumors

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Objections to UK funding proposal

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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