Bio Light: Replicating Sea Animal Bodies and Movement is a project that seeks to answer several questions: How much of the human body can be obscured by a costume while maintaining full range of motion? What materials can be used to best affect when building animal costumes with fluid movements? These questions were answered by building two experimental costumes that required systematic testing of materials. The animals designed and built were a Greater Blue-Ringed Octopus and a Leafy Sea Dragon. The animals are as realistic as possible with highly detailed features and skin textures. The shape of the animals is as true to nature as possible while still giving the operator a wide range of movement. Each animal has a distinctly different anatomy, skin quality and locomotion allowing for a broader assessment of materials and experimentation.Theatre and Danc