but are(n't) hogs & pigs different?
According to merriam-webster.com :
Definition of hog 1 a : a domesticated swine especially when weighing more than 120 pounds (54 kilograms) — compare pig 1a
b : any of various animals related to the domesticated swine
Definition of pig 1 a : a young domesticated swine usually weighing less than 120 pounds (50 kilograms) — compare hog 1a
b : a wild or domesicated swine regardless of age or weight
Unrelated, but another definition of hog.
2 usually hogg , British : a young unshorn sheep; also : wool from such a sheep
I guess the name Hogg (as in David Hogg) is derived from sheep rather than pigs.