appearance beak beaks blood-flow captive captivity Chinese-white-dolphin clever coastal-animals color coloration colored colorful colors colour coloured colourful colours confined conservation contrast contrasting dark-spots entertaining entertainment environment environmental Indo-Pacific-humpbacked-dolphin mammal marine-park medium-sized near-threatened oceanic perfoming performance pink pink-dolphins restricted skin Sousa-chinensis spots spotted teeth wild wildlife abstract background black blended bubbles bubbly christmas dark decorative design details geometric geometrical glass glassy green horizontal interconnected interlaced interlinked intertwined interwoven light linear lined lines patterned patterns perspectives shape shaped shapes style texture textured textures thick thin vertical vibrant wallpaper diagonal diagonally diagonals multicolored multicoloured pattern patterns rolls striped stripes weave woven mat rolled squared