According to this evolutionary tree, when did hominins branch away from the other apes? 
Definitions:
Cognitive Arousal Theory
A theory suggesting that emotions are determined by a combination of cognitive interpretation of environmental cues and the level of physiological arousal.
Physiological Changes
Modifications in the body's functions or structures occurring due to various factors such as aging, environmental changes, or health conditions.
Cognitive Labeling
The process of identifying and interpreting feelings and emotions by attaching labels to them.
Cognitive-Mediational Theory
Theory of emotion in which a stimulus must be interpreted (appraised) by a person in order to result in a physical response and an emotional reaction.
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