Summarize this article in one sentence.
Sometimes, while exploring the world, you occasionally encounter giant pigs roaming around the area, normally right next to a hut or a set of huts. These are the Pigmen, who are presumably the dominant sentient species of the setting. You can befriend these strange piggies and gain Sanity when around them! You can befriend them by giving them Meat, and once befriended, they tend to follow you around and help you with fighting and chopping down trees. Aside from that, staying close to them recovers your Sanity continuously. Different meats have different values, and higher values make your Pig friends stay with you for longer periods of time! Feed them as regularly as you can, with any type of meat you have on hand to keep them friendly. Be careful with the Monster Meats! Feeding them 4 units of Monster Meat will turn them into a Werepig, which not only attacks you but also decreases your sanity upon close contact! As long as your Pig friends are nearby, you'll be able to gain some amount of Sanity, but to really benefit from it, you'll have to stick very close to them. As long as they are close at hand, you will continuously gain sanity as long as they remain friendly. Later on in the game, you'll also encounter giant rabbits, called Bunnymen, underground. Unlike the Pigmen, the Bunnymen can and will attack you as long as you're carrying meat, but is easily befriended when fed Carrots, which can be found growing on the ground in the surface. They function similarly to the Pigmen as well, and also help recover Sanity when nearby.
Find Pigmen. Feed the Pigs. Keep close. Feed the Bunnies.