Zusammenfassung der Ressource
Flussdiagrammknoten
- Adapted new bipedal posture
- larynx migrates downwards
- resulting in the creation of a cavity, the pharynx
- increases resonance; broader range of sound
- superior clarity of sound
- more functions for fore limbs
- Con: created the possible risk of choking on food; a hazard not faced with primates who are predominantly quadrupedal