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508-million-year-old fossil embroys!

 

A rare fossil preserving embryos of the 508-million-year-old shrimp-like creature¬†Waptia fieldensis has been found. (Link to article here!) Fossilized embryos were found tucked up under the¬†Waptia‘s hinged shell, which means that these critters hung on to their fertilized eggs for at least a little while. The evolution of parental care might be a lot older than previously thought!