The limbic system is an ancient and highly interconnected part of the brain responsible for emotions like fear, anger, lust, love, and bonding.

“amygdala is like one of the the anchors of what's called the limbic system in the brain limbic system it's the part of the brain that's all about emotion not surprisingly mammals have a whole lot more limbic development than fish dude Fisher are not famous for their emotional lives the limbic system is arousal fee or anger lust love maternal pair-bonding mother infant bonding all of that and it's a whole series of structures not surprisingly ancient in mammals not surprisingly highly complex interconnected not surprisingly sitting underneath the cortex”