what's interesting about this story and the responses above are two-fold
first - that the researchers explaining their experiment do so from the position an infant is lying to deceive its caregiver; an infant could just as easily be learning at an incredibly young age to protect itself by whatever means it is able to do; take for instance a phenomenon in a nursery when if one baby cries, soon all babies will start - until they are all crying. now out in the wild, one baby crying alone would certainly attract predators - but many babies crying together - well - perhaps the opposite would happen as in "stay away we're many and we're strong" is the message; and in a sense the babies who had no reason to cry other than to support their sister/brother are "lying" (they don't need food etc.)
sometimes the researchers just haven't caught up to what's really going on yet
second is how the survivors who responded in typical "no one believed me" textbook mode --when perhaps, as i did, you can look at it another way and turn it around - if the baby is lying - it has a damn good reason for it as in - yes, it's ok, don't hurt me any more and i'm fine see me be quiet ....
sorta sad but i think it makes sense; tell me what do you think fellows?