“…This sensitivity is later expressed in older children's propensity to engage in costly third-party punishments for retributive (such as wanting an antisocial puppet to suffer as a form of "just desert") and consequentialist motives (such as wanting to deter future harms by teaching the transgressor lesson; see Marshall, Wynn et al, 2020). Indeed, it could be the case that toddlers, like older children, expected the bystander to punish the nondefender puppet because they wanted the non-defender to learn a lesson, and not because they wanted the non-defender to suffer (Marshall, Wynn et al, 2020;Twardawski & Hilbig, 2020). Furthermore, this data extends previous findings on young children's punitive motivations (Kenward & Östh, 2015;Marshall et al, 2019McAuliffe et al, 2015;Mendes et al, 2018;Riedl et al, 2015) suggesting a stable relation between toddlers' expectations about a bystander's rewarding and punitive motivations and children's behaviors.…”