On the Variability of Parenting Ability

(Some of my kids watching sheep mothering their babies)

Over the last decade a whole lot of babies have been born on my farm or brought home to it. We have had calves, chicks, kids (goat), kids (human), ducklings, goslings, kits and lambs. One of the most fascinating revelations of this is just how variable the instinct for parenting is among animals. Among closely related goats, for example, we have had among our best mothers, and our single worst one, a doe so dim that she would stand there...