Recent comments in /f/science

jadbal t1_ja3hc83 wrote

Reply to comment by Ehgadsman in Rock climbing affects cliff-plant communities by reducing species diversity and altering species coexistence patterns by nnomadic

If you’ve never participated in establishing new climbing routes, you may be underestimating the amount of cleaning that is usually required. We climbers don’t look for areas without loose rock and vegetation so much as we clean loose rock and vegetation while establishing new routes.

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r-reading-my-comment t1_ja3ebf8 wrote

Reply to comment by jtd1776 in Workers tasked with moving products in the U.S. food and beverage supply chain are at a high risk of severe injuries and fatalities — Grocery wholesalers and grocery retail stores saw the highest number of injuries, followed closely by the warehousing and storage groups by marketrent

Nah dude, we were supposed to lump other jobs together with pizza delivery. Didn’t you get the memo?/s

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r-reading-my-comment t1_ja3e2yw wrote

Reply to comment by crazymoefaux in Workers tasked with moving products in the U.S. food and beverage supply chain are at a high risk of severe injuries and fatalities — Grocery wholesalers and grocery retail stores saw the highest number of injuries, followed closely by the warehousing and storage groups by marketrent

Why are you championing the vagueness of your comment? By your rationale, cops should be lumped together with all security and first responders.

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AdolescenceOfP1 t1_ja3a8zz wrote

Reply to comment by DCGreatDane in Researchers believe rising sea temperatures are to blame for the plummeting number of invertebrates such as molluscs and sea urchins at Rottnest Island off Western Australia, with some species having declined by up to 90 per cent between 2007 and 2021. by Wagamaga

Yes, and that's a particularly complicated equation. (Water absorption of CO2 decreases with an increase in water temperature.)

But that doesn't in any way invalidate what happens, so be wary of conservative arguments only quoting part of the equation.

CO2 and Ocean Acidification: Causes, Impacts, Solutions

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mmwood t1_ja387up wrote

Reply to comment by FyreWulff in Unpredictable childhood environments linked to food addiction in adulthood by chrisdh79

That’s really sad to me - Atleast you can acknowledge it and maybe move past it. I have a friend who is like this and knowing that he was born to very young parents and probably had a radically different childhood than myself and it still affects him today hurts to think about (though he’s never opened up about anything other than have teenage parents)

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KuriousKhemicals t1_ja3792f wrote

Reply to comment by muzukashidesuyo in Unpredictable childhood environments linked to food addiction in adulthood by chrisdh79

What heritability actually shows is percent of variance is accounted for by genetics/inborn factors. How much variance there is can be environmental - that is, environment that is shared among all individuals in the study population, not just family environment. E.g. if weight was 100% heritable then genetic profile A would be 20th percentile and genetic profile B would be 90th percentile no matter what, but in 1920 that might have meant 110 pounds and 200 pounds, whereas today it might mean 130 pounds and 500 pounds. The actual weight of an individual still cannot be determined only by genetics.

Height is a good example to understand the counterintuitive math of heritability: it has become much more heritable over time because it's much more rare for people to experience malnutrition that impedes them from reaching their maximum genetic potential. The genetic pool hasn't changed significantly, and it has become more "genetically determined," but the increase in average height or the increase of height in subsequent generations of a family is very much due to environment.

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