The Signs of farrowing: Physiology and sow behaviour - Articles - pig333, pig to pork community
Ricky Gervais - Just found this in my belly button | Facebook
What is belly button fluff? - Quora
Piggy's Belly Button book by Keith Faulkner
Umbilical hernia - Atlas of swine pathology - pig333, pig to pork community
NADIS - National Animal Disease Information Service
Diagnostic tests for Salmonella in pigs - Articles - pig333, pig to pork community
Live Well: Looking for a pig named Peanut | Lifestyle | gazette.com
piggies and their weird obsession with needing to not only be right at your face but slightly touching it. for reference, i put her at my belly button, she decided here was
Woman treats pig like a toddler and the internet loves him - Upworthy