Before giving birth to a new litter, the female will chase away the litter she has been raising and goes into isolation. These abandoned juveniles may join up with another solitary female for a short time before they go out on their own. The female suckles the new litter, and each piglet has its own teat, suckling exclusively from it. Even if a piglet dies, the others do not suckle from the available teat. As such, litter sizes are usually confined to four young because females only have four teats.