These files are 300 dpi transparent png files. There are a total of 75 images that come in both color and black and white.-Savanna Set images include a warthog, elephant, giraffe, rhino, tree, ants, lilac-breasted roller bird, hippo, kangaroo, lion, gazelle, and zebra.-Ocean Set images include a starfish, dolphin, shark, whale, octopus, squid, coral, seaweed, waves, sea turtle, fish, jellyfish, stingray, crab, oyster, and shrimp.-Arctic Set images include a polar bear, walrus, reindeer, arctic f