A boar or a sow, depending on the gender.
sow
A pigletWhen a new pig baby is born it is called a piglet.
Piglet
A Piglet.
piglet
piglet
A piglet.
A Piglet.
A small, baby pig is usually called a piglet in North America.
A young warthog is called a piglet.
It's a baby, It's cute, much smaller, much slimmer, and more energetic.
Baby pigs/hogs are called piglet. Sometimes they are known as pinkies. And I would call it CUTE. :)