Definately didn't happen with any of my farm animals! That is the most vulnerable a newborn can be. Moms chew the cord Immediately, clean up baby and more than half eat the afterbirth. In the wild, I'd say closer to 100% eat it to dispose of the evidence of birth, which preditors would smell, discovering a near helpless newborn & weakened mother. I could see giving a half hour after human birth but more than that seems morbid. Placenta is dying at that point. After mom is cleaned & baby is cleaned...CUT THE CORD.