Extremely mountainous, humid and wet environment. Within this environment, wind speeds are low, but rainfall is high. Water evaporates quickly in this environment, due to underground volcanic activity that turns standing water into steam. Both visibility and the ability to breath are poor at all elevations. Higher elevations are covered in thick vegetation, tall trees, and fast growing invasive vines. Daily temperatures range from over 100 degrees fahrenheit to -20 degrees fahrenheit. Due to the high levels of steam and constant underground volcanic activity produced in this environment, it is not uncommon for mountain sides to erode without warning. The sun sets for 12 hours total in this environment. Despite the harsh conditions, the environment is livable.
Describe in detail at least 2 physical features of a hominin who would be found living in an Extremely mountainous, humid and wet environment.
Why did you choose these features, and how do these features provide a selective advantage for hominins living in the above environment ?