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Chernobyl's mutant wolves appear to have developed resistance to cancer, study finds (news.sky.com)

submitted 2 years ago by stopthatgirl7@kbin.social to c/news@lemmy.world

19 comments fedilink hide all child comments

The wolves are exposed to cancer-causing radiation as they roam the wastelands of the abandoned city - with researchers finding part of their genetic information seems resilient to increased risk of the disease.

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[–] DocMcStuffin@lemmy.world 27 points 2 years ago (1 children)

Found an npr interview with the researchers that provides more insight: Why wolves are thriving in this radioactive zone

CAMPBELL-STATON: So in general, we found that the fastest-evolving regions within Chernobyl are in and around genes that we know have some role in cancer immune response or the anti-tumor immune response in mammals.

...

CAMPBELL-STATON: The major question that we had was, is there selection happening? Our data clearly show that there is a genetic component - you know? - and a significant and strong genetic component. That does not mean that the entire story is based around genetics.

BARBER: This might be why the wolf population is thriving. After generations of developing a resilience or resistance to cancer, they're now successful apex predators in an area once devoid of much other life. But Shane says, even if natural selection is at play here, there's another big factor at play.

CAMPBELL-STATON: The other thing is humans aren't there, right? A wolf within the Chernobyl Exclusion Zone - it may have to deal with pressures from cancer, but it doesn't have to deal with pressures from, say, hunting. And it may be that the release from that hunting pressure - that separation from humans - turns out to be a much better thing than having to deal with cancer, which is kind of messed up.

BARBER: So when you think about that initial conundrum - why is the wolf population in Chernobyl estimated to be seven times denser than in other areas? - it's hard to know exactly why. Maybe wolves with cancer-resistant or -resilient genes are naturally selected. Maybe they just don't need to worry about humans. Cara and Shane say it's probably a bit of both, but they hope to take more trips to the CEZ to figure this out. And they also think that if they're able to identify the genes responsible for this cancer resilience or resistance in wolves, it could inform human cancer treatments.

[–] gregorum@lemm.ee 9 points 2 years ago* (last edited 2 years ago)

thank you.

see, the human brain will, by habit, try to make sense of something that doesn’t fit a pattern. however, it has an inherent weakness in its otherwise very powerful pattern-matching engine: it automatically tries to search for a “magic bullet” solution to every problem. That is: for every problem, no matter how complex, the human brain always assumes there’s only one, single cause.

Now, normally, that’s true when the problem is a simple one. The principle of cause and effect generally means that cause A leads to effect B. However, in complex systems, cause A can lead to effects B and C, which lead to effects D-F, and so on… The problem then presents itself when some people can’t understand how some problems have more than one cause - or, especially, many, systemic causes, and, thusly, more than one solution, especially when a problem has to be solved with more than one solution at once and/or over time, repeatedly and even regularly.

The problem here is that, then, individuals and society at large, just kind of short circuit, and give up on even solving the problem at all. It’s very sad. A great example of this is the problem of homelessness. Another is our crazy problem with healthcare. Or gun violence or racism, or immigration. There are many other examples of deep-rooted systemic issues that don’t have any single solution, and because they don’t, the American people simply can’t wrap their heads around figuring out a solution because they involve multiple complex steps to address multiple complex issues.