My nephew didn't let my son have something and my son went and grabbed his legs from the bottom…

My nephew didn't let my son have something and my son went and grabbed his legs from the bottom trying to bite him like chucky lmao then he was running after him like my mom had to hold my son back. He's so bad. He gets really agressive like he's tired of his cousin always hurting him and taking stuff from him lol. Anyone elses almost 2 year old like this or is it just mine?