Shuhai Xiao (IMAGE)

Virginia Tech

Shuhai Xiao

Caption

Virginia Tech geobiologist Shuhai Xiao and collaborators reported a 550 million-year-old sea sponge fossil, filling in a gap in the evolutionary family tree of one of the earliest animals. Photo by Spencer Coppage for Virginia Tech.

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Photo by Spencer Coppage for Virginia Tech.

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Photo by Spencer Coppage for Virginia Tech.

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