The Longevity Bottleneck Hypothesis opus 447
| 22 October 2024 1130 Hours | | Dinosaur, Aging, Biology, Evolution, Genetics, Mammalogy, Ornithology |
For a long time now, humans have sought a longer life span.
Some slow progress has been accomplished.
There may be, however, something in our deeper past
That has caused our lack of accumulated years.
The name for this has been dubbed the 'Longevity Bottleneck Hypothesis'.
Because dinosaurs found the newly evolved mammals to be quite tasty,
The predation on these small, fuzzy creatures gradually increased.
For more than 100 million years dinosaurs were the dominant predator,
While mammals were usually small, nocturnal, and short-lived.
Thus dinosaurs 'forced' mammals through predation to lose or inactivate
Genes and pathways associated with long life.
In other words, rapid reproduction was more adaptive for survival!
Remember, this is an hypothesis,
(A scientific theory has to be proven from many valid hypotheses),
So it is not accepted by all, but just like the efforts to reactivate the dinosaur tail
In a chicken, reactivation of our 'longevity genes' might result in a similar consequence:
Are we really accomplishing beneficial outcomes--creating little 'chicken dinosaurs',
Or perhaps worse, thousands of really old people who may lack productivity?