zoo thin line icons set: lion, deer, horse, monkey, tiger, penguin, hippo, giraffe, elephant, turtle. modern

african animal bear bird black cartoon cute deer design dolphin dove duck elephant fish giraffe goat hare hippo hippopotamus horse hummingbird illustration kiwi line lion mammals meerkat monkey mouse nature penguin polar rabbit scorpio set sign simple snake squirrel symbol theme thin tiger toucan turtle vector wild wildlife zoo