Learn about the wide-ranging Ecdysozoa group of animals and how scientists solved the curious case of their nervous systems' ...

Discover how a recent fossil study sheds light on the evolution of the ventral nerve cord in ecdysozoan animals and its ...

Their long appendages were covered in 'very short spines ... different functions similar to arthopods - an invertebrate ...

They’re also one of the world’s largest arthropods, animals with no backbone, external skeletons, and multiple-jointed appendages. In this crab’s case, those appendages are its 10 legs.

Adorned with gossamer, leaf-shaped appendages over their entire bodies ... It is not known if they are preyed upon by other animals. They are, however, frequently taken by divers seeking to ...