dolphin - black and white icon -

monochromatic illustration intelligence echolocation welldefined intelligent artificial silhouette background featuring interplay isolated contours striking logotype portrait insignia porpoise cetacean creature dolphin elegant artwork crafted graphic drawing profile outline cartoon flipper aquatic playful whistle vector design sketch shadow symbol shield doodle emblem mammal social black white sharp light tones stamp badge front ocean icon dark logo line sign gray fast art sea pod