• FundMECFS@lemmy.blahaj.zone
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    27 days ago

    Fun fact: Grizzlies and Polar Bears are the same species according to the Biological Species Concept.

    Meaning they interbreed in the wild (somewhat rare), and produce viable offspring that can have babies as well.

    We’re actually noticing this happening more and more with climate change. As Grizzly populations move further and further north, they’re encountering polar bears more often and are more likely to mate. Some scientists actually think within the next couple centuries due to arctic sea ice pretty much disappearing polar bears will either go extinct, or interbreed with grizzlies so much that there isn’t a “pure” polar bear left. Most likely a mix of both.

    • Geetnerd@lemmy.world
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      26 days ago

      In the near future, Polar Bears as a separate species will likely disappear, and we’ll have all hybrids.

    • LibertyLizard@slrpnk.net
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      27 days ago

      There are tons and tons and tons of species that can do this. It’s not clear to me what the prevailing species concept is nowadays, if we’re even still following one.

    • Dasus@lemmy.world
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      26 days ago

      Biologists wouldn’t say they’re the same species, because biologists are aware of interspecies hybrids and the species problem.

    • xwolpertinger@lemmy.world
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      26 days ago

      Fun fact: Grizzlies and Polar Bears are the same species according to the Biological Species Concept.

      Calling it that gives it too much credit, it is something thought up in the 17th/18th century without any concept of genetics and evolution.

      Which might explain why it breaks down almost instantly under any amount of scrutiny.

      • barsoap@lemm.ee
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        26 days ago

        It’s a category. All lines are arbitrary to a degree and “interbreeds and produces viable offspring” is not exceedingly arbitrary. You can have arguments around populations which could and would interbreed if they weren’t geographically distinct, you can argue about whether offspring needs to be viable no matter which way around the sexes of the parents are, or how large the percentage of viable offspring needs to be, but in the end, yep it makes sense to have a distinction somewhere around that bunch of criteria.

        House cats and European wild cats are considered distinct species not because they’re genetically incompatible, but because they don’t interbreed to any significant degree – too many behavioural differences, and we’re not speaking about culture, here. So even if they could intermingle in theory in practice they don’t, so they stay separate, so they’re different species.

        It’s kind of… a behavioural view on the genome? If you have a better idea, field it, there has to be some dividing line because taxa for the taxonomy god.

      • bluewing@lemm.ee
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        26 days ago

        Close enough that we probably helped bred them out of existence. Neanderthal genetic markers show up with some regularity in certain modern human populations.

        Edit to add: While humans didn’t breed them out of existence, we certainly did intermix with them. And that does help to maintain their existence yet today.

    • FooBarrington@lemmy.world
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      26 days ago

      Bear is white, say good night, and tuck it in and tell it a story. Once the bear has fallen asleep snuggle up to it, so it has a fresh morning snack.

    • VividNight@midwest.social
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      24 days ago

      Black bears are pretty skittish, so usually acting big & loud is enough to make them jog away, but I’m not sure someone could take them in a fight if the black bear was cornered.

      Speaking of which, bears are extremely protective of their cubs, so if you ever see any cubs, running away from them at full speed is probably the best choice.

      • TheDoozer@lemmy.world
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        26 days ago

        Oh, I had understood that to mean lay down facedown (with your back to it) since people usually have backpacks while hiking/hunting, and it provides some measure of protection.

    • s_s@lemm.ee
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      26 days ago

      Also.

      Some black bears are brown.

      Some brown bears are black.

      Good luck everyone.

    • lobut@lemmy.ca
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      26 days ago

      I remember somewhere they were saying you should remove your clothes (slowly piece by piece) with a polar bear. The bear will get distracted and start sniffing your clothes.

      I think it was a QI episode and then David Mitchell said something like that Polar Bear being happier in the fact that the human would be better to eat this time because it didn’t have a wrapper.

      • ikidd@lemmy.world
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        26 days ago

        I think removing your clothes is just so the bear doesn’t choke to death on your Nikes.

      • The Giant Korean@lemmy.world
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        26 days ago

        This works because polar bears are super horny. Its desire to rend you limb from limb will be replaced by overwhelming lust. Of course then you’ve got a completely different issue to deal with, but at least you might not die.

  • Oniononon@sopuli.xyz
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    26 days ago

    They may kill SEAL with a slap but how many polar bear slaps does it take to kill members of other special forces?

    • Rachelhazideas@lemmy.world
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      26 days ago

      If you see a bear off trail, that’s normal.

      If you see a man off trail, you are being followed.

      How hard is it to understand?

      It’s not about which one women would rather fight, is about which one they would rather encounter when they expect to be alone.

      Also, the worst bears can do is maul you to death on the spot. The worst men can do is rape, torture, and maim you for weeks before killing you.

      • GoodLuckToFriends@lemmy.today
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        26 days ago

        Also, the worst bears can do is maul you to death on the spot. The worst men can do is rape, torture, and maim you for weeks before killing you.

        Damn, all that fanfiction I read from brother bear is just crumbling…

    • huf [he/him]@hexbear.net
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      27 days ago

      the grizzly is telling him “Ah, Jesus. I wish you could see this. Light’s coming up. I’ve never seen a painting that captures the beauty of the ocean at a moment like this. I’m gonna make you rich, Bud Fox. Yeah. Rich enough, you can afford a girl like Darien. This is your wake-up call, pal. Go to work.”

  • ThatGuy46475@lemmy.world
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    25 days ago

    Polar bears are very curious animals, so if you back away while slowly undressing they will stop to inspect each piece of clothing, giving you time to get away.

    • Prethoryn Overmind@lemmy.world
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      25 days ago

      They are also one of the few, next to tigers, land predators that actually have a taste for human blood. The nature of a polar bear thinks it can eat it then it will certainly try. You also absolutely cannot out run them.

  • Mac@mander.xyz
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    26 days ago

    Motorcycle helmets are purposefully not-hard. Odd comparison.