Dinosaurs Could Prevent Us From Living 200 Years.

The rate at which several species of reptiles and amphibians age and mammals, including ourselves, ages very differently.

One scientist suggests that the reason for this gap might be that millions of years ago, during a pivotal juncture in the development of mammals, dinosaurs dominated the animal kingdom.

In a recently published research, microbiologist João Pedro de Magalhães from the University of Birmingham in the UK outlines his "longevity bottleneck" concept.

Here's the theory: as evolution advanced, genes favoring longer lifespans might have been lost since, during the time of the dinosaurs.

It was essential for the much smaller mammals to be able to breed quickly in order to live.

"Some of the earliest mammals were forced to live towards the bottom of the food chain, and have likely spent 100 million years during the age of the dinosaurs evolving to survive through rapid reproduction," adds de Magalhães.

"That long period of evolutionary pressure has, I propose, an impact on the way that we humans age."

According to the published research, several enzymes that repair UV light-induced damage appear to have been lost by our very old ancestors in the eutherian mammal lineage sometime around the time of the dinosaurs.

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