Baby biting while nursing is a completely normal developmental phase and every baby goes through it. (myquietspot.com)
Doing any or all of these things could turn what is likely to be a normal developmental phase that could quickly pass into a long term problem. (verywellfamily.com)
According to Deborah Gilboa, parenting expert and author of Get The Behavior You Want Without Being The Parent You Hate, bullying is not necessarily evil, «it's a normal developmental phase.» (romper.com)