• southsamurai@sh.itjust.works
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    1 day ago

    That is the shittiest possible interpretation of the situation.

    People act like animals can just magically decide to eat new things. It doesn’t work like that. It’s the same as that stupid koala meme where people whinge about them not eating things put down in their territory.

    That’s not how it works, at all. Animals, humans included, have instincts that drive them with it comes to what is and isn’t food. And even humans can turn down things that are technically edible while starving, because they don’t know it’s edible, and we do have the ability to reason out ways to safely try unfamiliar things.

    • UnspecificGravity@piefed.social
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      1 day ago

      Except that we are talking a group of animals within a species.

      Other, genetically identical, Orcas literally swim into the same habitat as Southern Residents and eat all the other shit in puget sound while the resident orcas sit there and starve in the same environment.

      • southsamurai@sh.itjust.works
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        1 day ago

        Which is completely irrelevant to that group because the process by which an animal recognizes that is and isn’t “food” is partially location dependent. If you took one of them out of their territory at birth, raised them in a different one, they’d learn different food spectrum.

        • bobo@lemmy.ml
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          1 day ago

          They almost exclusively eat salmon. Humans have destroyed salmon populations. They share their territory with other natural prey like seals. They kill seals for fun. They can’t figure out that seals are edible.

          But I’m guessing that’s not the main reason their population is declining

          Pacific Northwest orca are among the most contaminated marine mammals in the world, due to the high levels of toxic anthropogenic chemicals that accumulate in their tissues.[115] Implicated in the decline of the southern resident orca population, these widespread contaminants pose a large problem for conservation efforts. While many chemicals can be found in the tissues of orca, the most common are the insecticide DDT, polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs).[116] Each of these have detrimental physiological effects on orca,[117] and can be found in such high concentrations in dead individuals that those individuals must be disposed of in hazardous waste sites.[118]

          Correlative evidence shows orca may be vulnerable to effects of PCBs on many levels. Research has identified PCBs as being linked to restricting development of the reproductive system in orcas and dolphins.[119] High contamination levels leads to low pregnancy rates and high mortality in dolphins. Further effects include endocrine and immune system disruption, both systems being critical to mammalian health and survival.[117] A study examining 35 Northwest orcas found key genetic alterations that caused changes to normal physiological functions.[120] These genetic level interferences, combined with the varied effects of PCBs at other physiological levels, suggest these contaminants may be partially responsible for declines in orca populations.

          https://en.wikipedia.org/wiki/Southern_resident_orcas

            • Catoblepas@piefed.blahaj.zone
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              1 day ago

              If it gives you a yardstick to measure by, they spent quite a while insisting ICE List was actually a honeypot and trying to scare the shit out of anyone that has visited the site. This was after mainstream news was already reporting on it.