Examlex
The development of PTSD in older individuals is linked to risks of which physical health condition?
Bipedality
The ability to walk upright on two legs, a key feature distinguishing humans and some other species from quadrupedal animals.
Selective Pressures
The environmental factors that favor certain phenotypes over others, influencing an organism's ability to survive and reproduce.
Human Lineage
The evolutionary path leading to and including Homo sapiens, marked by significant milestones such as bipedalism and complex tool use.
Leakey's Hypothesis
A theory proposing that the development of bipedalism in human ancestors was driven by ecological changes that favored standing and walking on two legs.
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