Pigs
According to the 2015 article of the International Journal of Comparative Psychology, pigs can also be the best friend of men. Like humans, pigs have been shown to feel empathy, display compassion, overcome mazes, master primary abstract languages, and, most adorably, make the closest friends. Pigs are considered the world’s fifth smartest animal — even more intelligent than dogs — and can play video games with greater focus and success than chimps! They also have an excellent object-memory. If they find grub in one spot, they are going to remember to look there the next time. Pigs also have a sophisticated sense of direction. They can find their way home from a considerable distance.
