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!
You must be logged in to post a comment.