It can live on manure and other such items including dead meat. In fact it can eat its own feces. Their sexual habits are also different than other animals like cows, sheep and goats. The female hog is very aggressive in sexual activity. Swine, also lick the genitalia of their partners after sex like dogs, but unlike other mammals like cows, sheep or goats.
Fats are lipids which are a source of energy.
They can be of vegetable source or animal source. Triglycerides are neutral fats with I molecule of glycerol and 3 fatty acids. The fatty acids can be saturated or unsaturated. The more unsaturated fats have high melting points. The iodine value of fat gives the degree of unsaturation.