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 autumn background cool dark darkened fall image impressionist light lighting mirrored park patterns peace peaceful perspective perspectives placid public reflected reflection reflections restful ripples river riverside serenity shade shadows sunlight sunshine texture textured textures tranquil tranquillity trees views wallpaper water waterside water’s edge black blended bubbles bubbly christmas decorative design details geometric geometrical glass glassy green horizontal interconnected interlaced interlinked intertwined interwoven linear lined lines patterned shape shaped shapes style thick thin vertical vibrant diagonal diagonally diagonals multicolored multicoloured pattern patterns rolls striped stripes weave woven mat rolled squared