Interesting article which is currently just a hypothesis on why humans age - as in slow down, physical problems, increased risk of mortality with age etc, as compared to species that don't age (though do die). I'm interested in those other species, not just the hypothesis.
theconversation.com
Could dinosaurs be the reason humans can't live for 200 years?
Our mammal ancestors evolved to compete with dinosaurs but may have lost something in the process.
theconversation.com
