The document discusses several wild dog species including wolves, coyotes, foxes, jackals, and dingoes. Wolves are the largest dog and look similar to German Shepherds, while coyotes resemble small wolves and are found across the US eating rabbits, mice, and carrion. Foxes have different colored fur, bushy tails, and long snouts and live worldwide. Jackals also resemble foxes and primarily eat small animals and carrion in Africa and Asia. Dingoes are medium-sized wild dogs unique to Australia that howl instead of bark and eat sheep and kangaroos.