#1
https://www.quora.com/

Death and Dying: According to the theory of evolution, why do we die?
Suzanne Sadedin
Suzanne Sadedin, Ph.D. in theoretical evolutionary biology from Monash University
Updated Aug 3, 2015 · Featured in Forbes · Upvoted by Ben Waggoner, PhD in Integrative Biology, university professor, evolutionary biologist and Adriana Heguy, molecular biologist, genomics researcher
Excellent question. And before I explain.....