Mother's Day - who's the worst?

In the holiday spirit, the NYT reviews loving maternal behavior in birds and mammals. A cool antidote for Disney sappiness or penguin wish fulfillment.

My award for worst parent goes to the mother of the eaglet who starved it while its sibling pecked it 1,569 times, but really the competition is ... ummm ... fierce.

The weak die so that the strong may live. Be grateful for your abundance ...