Four-cell Embryo Fossil (IMAGE)

Virginia Tech

Four-cell Embryo Fossil

Caption

A more-than 551 million year old four-cell embryo magnified using a scanning electronic microscope. The specimen is about 0.65 millimeter in diameter.

Credit

Shuhai Xiao

Usage Restrictions

May be used to illustrate reports about Shuhai Xiao's research.

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Licensed content

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