That says to me, at least in rats -- and I think they have the same neurotransmitters that we do and a similar cortical architecture -- that play may be pretty important for our survival.
To mi govori, barem kod štakora, a mislim da imaju  iste neurotransmitere kao i mi i sličnu strukturu moždane kore, da igra može biti vrlo važna  za naše preživljavanje.