So how does this apply to Wolverine? Is he a lizard?
Comment on What determines whether something is small enough to regrow on a mammal?
deranger@sh.itjust.works 1 week ago
Mammals can’t de-differentiate cells back to progenitor stem cells, so their ability to heal is limited.
Thavron@lemmy.ca 1 week ago
mapleseedfall@lemmy.world 1 week ago
He’s fiction. Thats how it apply
Shou@lemmy.world 1 week ago
This is not true.
It’s not about cancer, it’s about senescence. Mammals’ and many other animals’ only way to adapt to an ever changing enviroment, is: remix genes + mutations + epigenetic factors. And hope for the best.
In order for parents to not compete with their offspring for food or sex, they have to die. Which can simply be a limited lifespan by cells getting sloppy in their maintenance, or by choosing to starve yourself to death.
If you get injured badly, you have failed to survive. It is more energy and evolutionarily speaking to let you die, than expend energy on your recovery. Energy is limited in every enviroment. Depression and lethargy are interesting aspects to self-elimination (not suicide) as well.
Senesence is also why cancer is far more common in older people than in children. Our repair functions stop doing their job well as part of senescence. Increasing the chance and speeding up the development of tumors.
deranger@sh.itjust.works 1 week ago
Those repair functions working better than normal is one of the hallmark signs of cancer, specifically telomerase being reactivated. Senescence is anti cancer, not pro cancer. You know those HeLa cells that are immortal? Cancer cells. Having a time limit or replication limit on cells through senescence is a great way of limiting tumors.