Grown‑upsdon’tliketotalkaboutit.Dogssniffit.Catsbury it.Space‑walkingastronautsdoitintheirdiapers.Andkidsgigglewhentheyjusthearthe word.
ByMarylou Tousignant
Wildlife
LifeScience
Asyouread,thinkaboutthedifferentfunctionsandbehaviorsassociatedwithgettingridof waste.