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508-million-year-old fossil embroys!

 

A rare fossil preserving embryos of the 508-million-year-old shrimp-like creatureĀ Waptia fieldensis has been found. (Link to article here!) Fossilized embryos were found tucked up under theĀ 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!