Time to buy the kiddos holiday gifts: Cyber Monday is upon us! Shop.org said that 72% of online retailers are planning a special promotion today. Participating retailers include Target, Apple Store, and eToys.

Or not: University of Minnesota researchers have found an inverse relationship between materialism and self-esteem. “When self-esteem drops as children enter adolescence, materialism peaks. Then by late adolescence, when self-esteem rebounds, their materialism drops.” Researchers suggest that encouraging a sense of self-worth among young people can reduce an emphasis on material goods.

Need to catch a villain? Find a baby: six-month-old babies were found to be able to determine who’s naughty and nice. Researchers demonstrated play where some shapes were assigned either helpful or harmful characteristics; babies later preferred to play with those shapes appearing to be friendly.

Yet another reason not to light up: A biological explanation has been found to demonstrate why a mother smoking before and after pregnancy might reduce her daughter’s fertility by as much as two-thirds.