Feather-star shrimps, like the Ambon feather-star shrimp in this photograph, live exclusively in feather-stars. Most feather-stars will play host to a symbiotic marine animal, like the feather-star shrimp. The shrimps come in many different colours, adapting their colour and patterning to match their feather-star home. How they do this is not understood. Their relationship with the feather-star is also not well understood. Only one shrimp is found living in a feather-star. This raises many questions about how they reproduce, or how the larvae develop, none of which is known.